Greek and Latin roots in English_E

Root	Meaning in English	Origin language	Etymology (root origin)	English examples
ec-	out	Greek	ἐκ (ek)	eccentric, ecstasy, ecstatic
ecclesi-	assembly, congregation	Greek	ἐκκλησία (ekklēsiā) from ἐκκαλέω (ekkaleō) "I summon" or "I call out"	Ecclesiastes, ecclesiastical
eco-	house	Greek	οἶκος (oikos)	ecology, economics, economy, ecumenism
ecto-	outside	Greek	ἐκτός (ektos)	ectoderm
ed-, es-	eat	Latin	edere, esus	edible, obesity
eg-	goat	Greek	αἴξ, αἰγός (aix)	egophony
ego-	self, I (first person)	Latin, Greek	ego, ἐγώ	egocentric
eiren-	peace	Greek	εἰρήνη (eirene) "peace"	eirenic, irenic, irenology
electr-	amber	Greek	ἤλεκτρον (elektron)	electron, electricity
elem-, alm-	pity	Greek	ἐλεημοσύνη (eleemosyne)	almoner, alms, eleemosynary
em-, empt-	buy	Latin	emere, emptus	exemption, preempt, redeem
eme-	vomit	Greek	ἐμεῖν, ἔμετος (emein, emetos)	emesis, emetic
emul-	striving to equal, rivaling	Latin	aemulus, aemulare	emulator
en-, em-	in	Greek	ἐν (en)	emphasis, enclitic, enthusiasm
encephal-	brain	Greek	ἐγκέφαλος (enkephalos)	encephalopathy
endo-	inside, within	Greek	ἔνδον (endon)	endocardial, endocrine, endocytosis, endoskeleton, endosperm
engy-	narrow	Greek	ἐγγύς (engys)	Engystomops
ennea-	nine	Greek	ἐννέα (ennea)	ennead, enneagon, enneode
ens-	sword	Latin	ensis	ensiform
eo-, eos-	dawn, east	Greek	Ἠώς/Ἕως (ēṓs)	Eocene
ep-, epi-	upon	Greek	ἐπί (epi)	ephemeral, epicenter, epidemic, epistemic, epitaph, epithet, epoch
equ-, -iqu-	even, equal, level	Latin	aequus	equal, equanimity, equate, Equator, equilibrium, equinox, equipoise, equity, equivalence, equivocal, equivocate, iniquity
equ-	horse	Latin	equus	equestrian
erg-	work	Greek	έργον (ergon)	allergy, energy, erg, ergometer, ergonomics, ergophobia, liturgy, metallurgy, organ, surgeon, synergy
erot-	(sexual) love	Greek	ἔρως, ἔρωτος (erōs, erōtos)	erogenous, erotic
err-	stray	Latin	errare	aberration, err, errant, erroneous, error
erythr-	red	Greek	ἐρυθρός (eruthros)	erythrocyte
eso-	within	Greek	ἔσω (esō)	esoteric
eth-	custom, habit	Greek	ἦθος (ēthos)	ethology
ethm-	sieve, sift	Greek	ἠθμός (ēthmos); ἤθειν (hethein)	ethmoid
ethn-	people, race, tribe, nation	Greek	ἔθνος (ethnos)	ethnarch, ethnic
etym-	true	Greek	ἔτυμος (etumos)	etymology
eu-	well, good	Greek	εὖ (eu)	euphoria, euthanasia
eur-	wide	Greek	εὐρύς (eurus)	Europe, eurypterid
ex-, e-, ef-	from, out	Latin	ex	exclude, exist, exit, extend, extrude
exo-	outside	Greek	ἔξω (eksō)	exoskeleton, exothermic
extra-	outer	Latin	extra, extraneus and exterus	estrange, exterior, extra, extraordinary, strange
extrem-	outermost, utmost	Latin	extremus	extreme, extremity, extremophile