Latin and Greek roots behind thousands of English words.

Most hard English words are built from a few hundred Latin and Greek pieces, and knowing the pieces lets you guess a word you have never seen: benevolent is bene (good) and vol (wish), someone who wishes you well. Here are 48 roots that do the most work, each with its meaning and the words built on it, and a note on how to use them without being fooled.

By the Gloss team, PixelPaw · Published October 24, 2026 · How we check what we write

How to use a root

A root is a clue, not a definition. Circumspect is circum (around) and spec (look): someone who looks around before acting, which is exactly what it means. Pathetic is path (feeling) with an ending: it once meant moving, full of feeling, and now mostly means pitiful. So the method is: split the word, guess from the pieces, then read it in its sentence and see whether the guess survives. Most of the time it does, and when it does not, the surprise is how you remember the word.

The table

Latin first, then Greek. Where a word has a page on this site it is linked; its page spells out the origin in full.

Root	From	Meaning	Words
bene	Latin	well, good	benevolent, benefit, benediction
mal	Latin	bad	malevolent, malady, malfunction
anim	Latin	mind, spirit	magnanimous, equanimity, unanimous, animate
magn	Latin	great	magnanimous, magnify, magnitude
equ	Latin	equal, even	equanimity, equation, equivalent
circum	Latin	around	circumspect, circumference, circumstance
spec, spic	Latin	look	circumspect, spectator, conspicuous, inspect
dict	Latin	say	dictionary, predict, verdict, contradict
loqu, locu	Latin	speak	loquacious, eloquent, colloquial
scrib, script	Latin	write	describe, manuscript, prescription
duc, duct	Latin	lead	conduct, educate, produce
mit, miss	Latin	send	transmit, mission, dismiss
vert, vers	Latin	turn	convert, versatile, introvert
ject	Latin	throw	reject, conjecture, projector
lum, luc	Latin	light	luminous, lucid, illuminate, translucent
cand	Latin	glow, shine white	incandescent, candor, candid, candle
vor	Latin	devour	voracious, carnivore, devour
ten	Latin	hold	tenacious, tenant, retain
son	Latin	sound	sonorous, resonate, consonant
cred	Latin	believe	credible, incredulous, credit
fid	Latin	trust	confident, fidelity, infidel
nov	Latin	new	novel, innovate, renovate
omni	Latin	all	omniscient, omnivore, omnipresent
ambi	Latin	both	ambivalent, ambiguous, ambidextrous
sub, sur	Latin	under	surreptitious, submarine, subtle
umbra	Latin	shadow	penumbra, umbrella, somber
lim	Latin	threshold	liminal, eliminate, preliminary
mel · flu	Latin	honey · flow	mellifluous, fluent, influence
sol	Latin	alone	solitude, desolate, saudade (through Portuguese)
chron	Greek	time	anachronism, chronic, chronology
path	Greek	feeling, suffering	apathy, empathy, sympathy
phon	Greek	sound	cacophony, telephone, symphony
caco · eu	Greek	bad · good	cacophony, euphoria, eulogy, euphemism
pan	Greek	all	panacea, pandemic, panorama
para	Greek	beside, beyond	paradigm, paradox, parallel
dox	Greek	opinion	paradox, orthodox
epi	Greek	upon	epiphany, ephemeral, epidemic
phan	Greek	show, appear	epiphany, diaphanous, phantom, fantasy
petra	Greek	stone	petrichor, petrify, petroleum
melan · chol	Greek	black · bile	melancholy, melanin, choleric
nostos · algos	Greek	return home · pain	nostalgia, analgesic, neuralgia
glossa	Greek	tongue, language	gloss, glossary, polyglot
log, logy	Greek	word, study	logic, biology, dialogue
gno	Greek	know	agnostic, diagnosis, prognosis
graph	Greek	write	autograph, biography, paragraph
phil · soph	Greek	love · wisdom	philosophy, bibliophile, sophisticated
syn, sym	Greek	together	synonym, symphony, sympathy
aisth	Greek	perceive, feel	aesthetic, anesthesia
dem · krat	Greek	people · power	democracy, epidemic, aristocrat

Prefixes and suffixes, briefly

The same logic runs on the front and back of words. Front: re- again, pre- before, post- after, anti- against, auto- self, tele- far, hyper- over, hypo- under, pseudo- false, in-/im-/il-/ir- not (ineffable, impossible, illegible, irregular). Back: -logy the study of, -phobia fear of, -cide killing, -ous full of, -ify to make, -ism a belief or practice, -ist a person who. Omniscient falls apart in your hands: omni (all) + sci (know) + -ent: knowing everything.

Why this works, and where it stops

It works because English borrowed its learned vocabulary wholesale, from Latin through French after 1066 and from Greek through science and medicine, so the pieces repeat. It stops at the oldest words, which are Germanic: house, bread, friend, love owe nothing to Rome. And it stops at the borrowed one-offs this site is fond of: hygge, saudade, tsundoku and hiraeth have to be learned whole, which is part of their charm. For everything in between, the table above is the cheapest vocabulary you will ever acquire. The word gloss itself is in it: from the Greek glossa, tongue, then a hard word needing explanation, then the explanation written in the margin. A glossary is a book of them.

Questions people ask

What percentage of English words come from Latin and Greek?

Roughly 60% overall, and more in academic, legal, medical and scientific writing, where Latin and Greek pieces were used to build new terms. Everyday words like house, bread and love are mostly Germanic.

What are the most common Greek roots?

Chron (time), path (feeling), phon (sound), log (word, study), graph (write), bio (life), geo (earth), phil (love), auto (self) and tele (far) recur in hundreds of words each.

What are the most common Latin roots?

Dict (say), spec (look), port (carry), duc (lead), mit (send), vert (turn), ject (throw), scrib (write), cred (believe) and bene/mal (good/bad).

Can I always guess a word from its roots?

No. Roots give the ballpark and meanings drift: sympathy and pathetic share a root and mean very different things. Guess from the pieces, then confirm from the sentence or a dictionary.

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Sources

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