Vocabulary

All vocabulary from each unit and lesson can be found here.

Unit 1

Lesson 1

Root	Language of origin	Meaning	Example
bio	Greek	life	biology
log(y)	Greek	study of, reason, word	logical
photo	Greek	light	photograph
thermo	Greek	heat	thermometer
gno	Greek	to know	agnostic
(a)esth	Greek	to feel, to perceive	aesthetic
macro	Greek	large	macroeconomics
micro	Greek	small	microscope
scop	Greek	to see, to look at	stethoscope
morph	Greek	shape, form	metamorphosis
poly	Greek	many	polygraph
olig	Greek	few	oligarchy
phobia	Greek	fear, fear of	hydrophobia
graph	Greek	to write	seismograph
op(s/t)	Greek	to see, vision	optical
hyper	Greek	over, above, excessive	hyperbole
hypo	Greek	under, beneath, below	hypothermia
amphi	Greek	both, double	amphitheatre
vit(a)	Latin	life	vitality
omni	Latin	everything, all	omniscient
aqua	Latin	water	aquarium
terra	Latin	earth	terrarium
frug/fruct	Latin	fruit	fructose
con(i)	Latin	cone	conifer
mel(l)	Latin	honey	mellifluous
fer	Latin	to carry, carrier	conference
multi	Latin	many	multipurpose
magn(i)	Latin	large	magnitude
parv(o)	Latin	small	parvovirus
vidi/visi	Latin	to see	visible
port(o/a)	Latin	to bring, to carry	transport
able/ible	Latin	able, capable	ability
mobl/mobil	Latin	to move	automobile
pos(t)/posit	Latin	to put, to place	position
super	Latin	over, above excessive	supercede
ambi	Latin	both, double	ambiguous
trans	Latin	across	translucent

Lesson 2

Root	Language of origin	Meaning	Example
hypn(o)	Greek	sleep	hypnosis
cine/kine	Greek	movement	kinetic
dynam	Greek	power	dynamic
erg	Greek	energy	ergonomic
the	Greek	to put, to place	thesis
meter/metry	Greek	measurement	geometry
path(o)	Greek	feeling, disease	pathology
hydr(o)	Greek	water	hydrant
neur(o)	Greek	nerve	neurosis
top(o)	Greek	place, location	topology
spher(e)	Greek	sphere, globe	hemisphere
trop	Greek	to turn	thermotropism
cata	Greek	against, very, down	catastrophe
dia	Greek	through, across	diagonal
tele	Greek	far, from afar	telepathy
phon	Greek	sound, voice, speech	phonics
meta	Greek	with, beyond, after	metastasize
syn	Greek	together, with	synthesize
a/an	Greek	not, without	asexual
anti	Greek	against, opposed to	antitoxin
somn(i)	Latin	sleep	insomnia
scrib/script	Latin	to write, written	prescribe
sens/sent	Latin	to feel, to perceive	sentient
corp	Latin	body	corporeal
spir	Latin	breath, to breathe	respirator
spect	Latin	to look	inspect
labi(a)	Latin	lips	labial
dent	Latin	tooth	dentist
loc	Latin	place	location
mar	Latin	ocean	marine
cal(or)	Latin	heat	calorie
fac(t)/fec(t)	Latin	to make	factory
tend(e/o)	Latin	to stretch	extend
vert/vers	Latin	to turn	invert
a/ab	Latin	down from, away from	abduct
e/ex	Latin	out of, outside, former	expel
inter	Latin	between	international
intra	Latin	within	intramural
de	Latin	down from, out of	deduce
circu(m)	Latin	around	circumscribe
ad*	Latin	to, towards	advance
sub*	Latin	beneath, below, under	substitute
con/com*	Latin	with	concur
in*	Latin	into, inside, on	include
in*	Latin	not, without	include
ob*	Latin	against, facing	obtuse

Lesson 3

Root	Language of origin	Meaning	Example
pod/pus	Greek	foot	octopus
derm	Greek	skin	dermatology
phys	Greek	nature	physical
zoo	Greek	animal	zoology
arthr	Greek	joints	arthritis
botan(e)	Greek	plants, herbs	botany
sarc	Greek	flesh	sarcophagus
cyt(e)	Greek	cell	cytology
ethn(o)	Greek	nation, people, race	ethnic
gymn	Greek	naked	gymnast
proto	Greek	first	proton
sta(s/t)	Greek	to stand	static
plas(t)	Greek	to make, to form	plastic
tom(y)	Greek	to cut	anatomy
ana	Greek	up to, up from	anabolic
endo	Greek	inside	endoderm
exo	Greek	outside	exoskeleton
ec(s)	Greek	out of	ecstasy
en	Greek	within, into	endemic
spec(i)	Latin	type, species	species
gen(e)	Latin	family, clan, type	genetics
bacter	Latin	rod	bacteria
verb	Latin	word	verbal
cut(a)	Latin	skin	cuticle
scien(t)	Latin	to know	scientist
sapien(t)	Latin	to be wise	sapience
audi(t)	Latin	to hear	auditory
ora(t)	Latin	mouth	oral
natur(a)	Latin	nature, habit	nature
pend	Latin	to hang	suspend
flex/flect	Latin	to bend	inflect
re	Latin	again	renew
retro	Latin	backwards	retrograde

Lesson 4

Root	Language of origin	Meaning	Example
tax(i/o)	Greek	ordering, arrangement	taxidermy
nom(y/ics)	Greek	law, method, practice	astronomy
psych	Greek	mind, soul	psychology
odon(t)	Greek	tooth	orthodontics
ot(o)	Greek	ear	otodus
(h)aem(o)	Greek	blood	haemoglobin
chrom(o)	Greek	color	chromatic
(o)ec	Greek	home, dwelling	economics
mast(o)	Greek	breast, teat	mastectomy
megal(o)	Greek	large, big	megalodon
aut(o)	Greek	oneself, one’s own	automatic
heter(o)	Greek	different, other	heterosexual
hom(o/eo)	Greek	same, like	homophone
all(o)	Greek	other	allele
mon(o)	Greek	one, single	monochrome
phil(o)	Greek	to love, to like	philosophy
phag(o)	Greek	to eat	phagocyte
troph(o)	Greek	to nourish, to feed	autotroph
eu	Greek	good, well	euphemism
dys	Greek	bad, disordered	dyslexia
form	Latin	shape, form	formation
speci(e)	Latin	appearance, form, quality	specific
gen(e)	Latin	clan, type, origin	genetics
mamm(o)	Latin	breast, teat	mammal
carn(i)	Latin	meat	carnal
herb(i)	Latin	plant	herbal
equ(i/a)	Latin	equal, same	equivalent
vor(a/e)	Latin	to eat	voracious
dic(t)	Latin	to speak, to say	diction
contr(o/a)	Latin	against, opposite	controversy
dis/di/dif	Latin	apart from, separately	divide
post	Latin	after	postscript

Lesson 5

Root	Language of origin	Meaning	Example
leuk/c	Greek	white	leukemia
erythr(o)	Greek	red	erythrophobia
melan(o)	Greek	black	melanin
xanth(o)	Greek	yellow, gold	xanthosis
chrys(o)	Greek	gold	chrysalis
phoenic(o)	Greek	crimson, bright red	phoenix
rhod(o)	Greek	pink, rosy	rhododendron
glauc/k	Greek	grey, silver	glaucoma
chlor(o)	Greek	green	chlorophyll
actin	Greek	ray (like the sun)	actinost
onco	Greek	mass, bulk	oncologist
sem(a/o)	Greek	flag, banner	semaphore
lepid(o)	Greek	scale (as of a fish)	leprosy
cole(o)	Greek	sheath	coleoptile
theca	Greek	case	apothecary
alb	Latin	white	albino
rub/ruf	Latin	red	rubella
nigr	Latin	black	nigrescent
cyan(o)	Latin	blue	cyanide
flav(o)	Latin	yellow	flavin
candid(o)	Latin	bright, white	candid
virid	Latin	green	viridian
scut(a)	Latin	shield	scute
squam(a)	Latin	scale (as of a fish)	squamous
bulb	Latin	onion, onion-like	bulbous
set(a)	Latin	bristle	setaceous
flor(a)	Latin	flower	floral
stri(a)	Latin	groove, stripe	striated
platy	Greek	flat	platypus
brachy	Greek	short	brachyodont
acr(o)	Greek	high, tall	acropolis
tachy	Greek	fast	tachyon
brady	Greek	slow	bradylogia
ambly	Greek	dull	amblyacusia
carchar	Greek	sharp, jagged	carcharias
long	Latin	long	elongate
brev(i)	Latin	short	brevity
parv(o)	Latin	small	parvovirus
magn(i/o)	Latin	large	magnitude
alt(o)	Latin	tall, deep	altitude

Unit 2

Lesson 6

This lesson also introduced many endings, which are best referenced on the Lesson page.

Root	Language of origin	Meaning	Example
thea	Greek	to view, to watch	theatrics
gam(e)	Greek	to marry, to join	monogamy
lex(i)	Greek	to read	lexicon
ly(s)	Greek	to dissolve, to loosen	dialysis
zym(e)	Greek	fermented, leaven	enzyme
petr/peter	Greek	rock	saltpeter
rhe(u)/rrh(ea)	Greek	to flow	rheumatism
rhythm	Greek	regularity, flow	rhythmic
mol(e)	Latin	weight, heaviness	molar
dorm/dormit	Latin	to sleep	dormant
fort/fors	Latin	strong	fortissimo
simil/sembl	Latin	alike, similar	similarity
sid/sed	Latin	to sit	sediment
mo(v/t)	Latin	to move	movement
capt/cept	Latin	to catch, to get	capture
curr	Latin	to run	current
centr	Latin	middle, center	central
cur	Latin	to care for, to oversee	curator
serv	Latin	to serve, to save	servant
ag/act(i)	Latin	to do, to drive, to force	agent
duc(t)	Latin	to lead	ductile

Lesson 7

Root	Language of origin	Meaning	Example
hemi	Greek	half	hemisphere
mono	Greek	one	monotone
di(ch)	Greek	two	dichotomy
tri	Greek	three	tricolor
tetr(a)	Greek	four	tetrapod
pent(a)	Greek	five	pentathlon
hex(a)	Greek	six	hexahedron
hept(a)	Greek	seven	heptagon
oct(a)	Greek	eight	octane
enne(a)	Greek	nine	enneagram
dec(a)	Greek	ten	decade
hect(a)	Greek	one hundred	hectacre
kil(o)	Greek	one thousand	kilobyte
prot(o)	Greek	first	proton
deut(er)	Greek	second	deuteragonist
semi	Latin	half	semicolon
uni	Latin	one	universe
du(o)	Latin	two	duality
bi	Latin	two	binary
tri	Latin	three	tricolor
quad/quatr	Latin	four	quadratic
quinqu	Latin	five	quinqueped
sex	Latin	six	sexagenarian
sept	Latin	seven	September
oct	Latin	eight	October
nov(em)	Latin	nine	November
dec(i)	Latin	ten	December
cent(i)	Latin	one hundred	century
mill(i)	Latin	one thousand	millipede
prim(a)	Latin	first	primal
second/secund	Latin	second	secondary
terti/tern	Latin	third, third time, thrice	tertiary, ternary
quart/quatern	Latin	fourth, fourth time, four times	quaternary, quarter
quint/quin	Latin	fifth, fifth time, five times	quintuplet
sext	Latin	sixth	sextet
septim	Latin	seventh	septimal
octav	Latin	eighth	octave
non	Latin	ninth	nonagenarian
decim	Latin	tenth	decimal

Lesson 8

Root	Language of origin	Meaning	Example
lith	Greek	stone	monolith
heli(o)	Greek	sun	heliotrope
hal	Greek	salt	halite
(di)dym	Greek	twin	didymous
iso	Greek	equal	isosceles
ne(o)	Greek	new	neonatal
oxy	Greek	sharp, sour	oxygen
calyp(s/t)	Greek	hidden	Calypso
gen	Greek	to create, to produce	generate
phor/pher	Greek	to bear, to carry	metaphor
ion	Greek	to go	ionic
apo	Greek	away	apotheosis
es/eis	Greek	to, towards, into	esoteric
epi	Greek	on, upon, to	epidemic
para	Greek	next to, beside, disordered	parasocial
peri	Greek	around	perimeter
pro(s)	Greek	in front of, in addition to	prologue
calc	Latin	limestone	calcium
val	Latin	strength, capacity, ability	valor
cut/cuss	Latin	to hit	percussion
flu	Latin	to flow	fluid
mon(it)	Latin	to warn, to advise, to suggest	admonish
extr(a/o)	Latin	outside, beyond	extravagant
infr(a)	Latin	below	infrastructure
ultr(a)	Latin	above, exceeding	ultrasonic
per	Latin	each, through, completely	permeate
pr(a)e	Latin	before, ahead of	preside

Lesson 9

Root	Language of origin	Meaning	Example
aer	Greek	air, gas	aerate
pyr(o)	Greek	fire	pyromania
techn(o)	Greek	skill	technology
onym	Greek	name	homonym
soph	Greek	wisdom	sophisticated
arch(ae)	Greek	old, ancient, beginning	archaeology
pale(o)	Greek	old	paleography
ont	Greek	being	ontology
(h)od	Greek	road, way	diode
quant	Latin	number, count, amount	quantity
still(a)	Latin	drop (as of liquids)	distill
anim(a)	Latin	soul, spirit	animate
nomin/nomen	Latin	name	nominate
lust(e)r	Latin	light (n.)	luster
hum(o/i)	Latin	moisture	humid
nov	Latin	new	renovate
pract	Latin	to do, to act	practice
sequ(e)	Latin	to follow	sequence
mit(t)/mis(s)	Latin	to send	submit
tract/trah	Latin	to drag	tractor
vect/veh	Latin	to carry	convection
ced(e)/cess	Latin	to withdraw, to yield	concede

Lesson 10

Root	Language of origin	Meaning	Example
irid/iris	Greek	rainbow, colorful, iris	iridescent
mer	Greek	part	polymer
mes	Greek	middle	Mesoamerica
krypt/crypt	Greek	hidden	krypton
bar(i/y)	Greek	heavy	barometer
iod(e)	Greek	violet	iodine
brom	Greek	stench, stink	bromide
cycl(o/e)	Greek	circle	bicycle
mall(e)	Latin	hammer	mallet
tellu(r/s)	Latin	earth	tellurian
nucle(us)	Latin	nut, nutshell	nucleus
radi(o)	Latin	ray (as of the sun)	radiant
med/mid(i)	Latin	middle	median
fug(a)	Latin	to flee, to go away from	fugue
pet(it)	Latin	to seek, to go towards	petition
gress/grade	Latin	to go, to advance	progress

Unit 3

Lesson 11

Root	Language of origin	Meaning	Example
icos(a)	Greek	20	icosahedron
(a)gon	Greek	angle	pentagon
arithm(o)	Greek	number	arithmetic
scel(e/o)	Greek	leg	isosceles
stoich(io)	Greek	element, part	stoichiometry
iso	Greek	equal	isometric
gram	Greek	written	telegram
hedron	Greek	geometric solid with X faces	hexahedron
orth(o)	Greek	straight, regular	orthodontics
ster(eo)	Greek	solid, stiff	stereotype
pto/pit(e)	Greek	to fall	peripiteia
ball/bol(e/a)	Greek	to throw	hyperbole
ten(u/e)	Greek	to stretch	tenuous
math(e)	Greek	to learn	mathematics
lips(e)/laps(e)	Greek	to fall	relapse
(h)eur(o)	Greek	to find, to discover	eureka

Lesson 12

Root	Language of origin	Meaning	Example
uncia	Latin	one-twelfth (1/12)	uncial
ord(in)	Latin	arrangement, order	order
angle/angul	Latin	angle	triangle
line(a)	Latin	line	linear
arc(h)	Latin	arch	arch
sin(e/u)	Latin	curve	sine
via	Latin	way, road	trivia
cliv	Latin	slope	proclivity
mun(er)	Latin	wall, fortification	munitions
plumb	Latin	lead (metal)	plumbing
rect/reg	Latin	straight, regular	rectangle
plan	Latin	flat	plane
integ(e)r	Latin	whole	integer
put(e)	Latin	to think	compute
sec(t)	Latin	to cut	section
fabr(i)	Latin	to craft	fabric
tang(e)	Latin	to touch	tangible
struct	Latin	to build	construct
fract/frag	Latin	to break	fragile
monstr	Latin	to show	demonstrate
tect	Greek	to build	architect

Lesson 13

Root	Language of origin	Meaning	Example
galac(t)	Greek	milk	galaxy
ast(e)r	Greek	star	astronomy
helio	Greek	sun	helium
selen(i)	Greek	moon	selenium
nyct(o)	Greek	night	nyctophobia
hemer(a)	Greek	day	ephemeral
eos	Greek	dawn, rosy	eosin
cosm(o)	Greek	whole, universal	cosmos
meteor(o)	Greek	lofty, high above	meteoroid
plan(e)	Greek	wandering	planet
stell(a)	Latin	star	stellar
nebul	Latin	mist	nebulous
sol(a)	Latin	sun	solar
lun(a)	Latin	moon	lunar
c(a)elest	Latin	sky, heavens	celestial
die/a	Latin	day	quotidian
noct/nox	Latin	night	nocturnal
vesper	Latin	evening	vespers
gibb	Latin	hump	gibbon
orb(it)	Latin	circular	orbital
grav(i)	Latin	heavy	gravitas
cresc(e)	Latin	to grow	crescendo

Lesson 14

Root	Language of origin	Meaning	Example
character	Greek	stamp, feature	characteristic
phan/phas	Greek	to show, to appear	phantom
cra(t/s)	Greek	to mix	crater
sider(a)	Latin	star	consider
fin(e/i)	Latin	end, ending	finite
rota	Latin	wheel	rotate
exper(i)	Latin	to try, to attempt	experiment
oper(a)	Latin	work, deed	operation
celer	Latin	speed	celerity
labor	Latin	work, labor	collaborate
metu/i	Latin	fear	meticulous
sign	Latin	sign, mark, standard	signal
h(a)er/h(a)es	Latin	to stick	adhesive
sist	Latin	to stand, to be firm	consist
tort/torq(u)	Latin	to twist	torque
tex(t)	Latin	to weave, woven	textile
fund/found	Latin	to establish, to found	foundation
volv/volut	Latin	to turn, to spin	revolve
ven(e/t)	Latin	to come	intervene
plor	Latin	to call out, to cry out	explore
ques/quis/quer/quir	Latin	to ask	query
divi(de, se)	Latin	to split, to divide	division

Lesson 15

Root	Language of origin	Meaning	Example
ba(s)	Greek	to step, to walk	basis
hol(i/o)	Greek	whole, entire	hologram
trad(it)	Latin	to hand, to hand over	trade
narr(a/o)	Latin	to tell a story	narration
mod(e/o)	Latin	now, current, at this time	modern
intell(i/e)	Latin	to understand	intellect
col/cult	Latin	to inhabit, to live in	cultural
civi(l)	Latin	related to citizens	civic
discipl(e/i)	Latin	student, learning	disciple
tribut(e/a)	Latin	to gift, to bestow	tribute
pan(d/s)	Latin	to spread	expand
rati(o)	Latin	reason, logic	rational
loqu(i/a)	Latin	to speak, to converse	colloquium
cis(e)	Latin	to cut	precise
tens	Latin	to stretch, be stretched	tension
clud/s(e)	Latin	to close, to shut	exclude
vern(a)	Latin	domestic, native	vernacular

Unit 4

Lesson 16

Root	Language of origin	Meaning	Example
p(a)ed	Greek	child	pedagogy
ger(o)	Greek	old, old age	gerontology
iatr(i)	Greek	doctor	pediatrics
cardi	Greek	heart	cardiac
carcin	Greek	cancer	carcinoma
hyster	Greek	womb, uterus	hysteria
metr	Greek	uterus	endometriosis
cephal(o)	Greek	head	cephalopod
neur	Greek	nerve	neuron
pneumon	Greek	lungs	pneumonia
alg(es)	Greek	pain	neuralgia
derm(at)	Greek	skin	dermatology
nephr	Greek	kidney	nephrology
ost(eo)	Greek	bone	osteoporosis
dors	Greek	back (body part)	dorsal
gastr(o)	Greek	belly, abdomen	gastrointestinal
enter(o)	Greek	intestines	gastroenteritis
hep(a)	Greek	liver	hepatitis
ophthalm	Greek	eyes	ophthalmologist
ch(e)ir(o)	Greek	hand, wrist	chiropractor
tars	Greek	ankle, sole of foot	tarsal
gyn(ec)	Greek	female, feminine	gynecology
andr(o)	Greek	male, masculine	androgyny

Lesson 17

Root	Language of origin	Meaning	Example
clav	Latin	key, collarbone	clavicle
medic(a)	Latin	doctor	medicine
cor(d)	Latin	heart	concord
capit/cipit	Latin	head	capital
nerv	Latin	nerve	nervous
pulmon	Latin	lungs	pulmonary
dol(or)	Latin	pain	dolorous
cal(or)	Latin	heat	calorie
rub(or)	Latin	red, redness	rubella
tum(or)	Latin	swelling, swollen	tumor
cut	Latin	skin	cuticle
ren	Latin	kidney	adrenaline
oss	Latin	bone	ossuary
ocul	Latin	eyes	oculus
manu	Latin	hand	manual
vulner(a)	Latin	wound	vulnerable
femin(a)	Latin	female, feminine	feminist
vir(i)	Latin	male, masculine	virtuous
dexter/dextr	Latin	right (as in direction)	dextrous
sinister/sinistr	Latin	left (as in direction)	sinister