List of Greek and Latin roots in English/E
# List of Greek and Latin roots in English/E

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* X
* Z

## 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 (ekklēsía) from ἐκκαλέω (ekkaléō) "I summon" or "I call out" | Ecclesiastes, ecclesiastical |
| ech- | sound | Greek | ἠχή, ἠχώ, ἠχοῦς, ἠχεῖν (ēkheîn), ἤχημα | anechoic, catechesis, catechism, catechist, catechize, catechumen, echo, echoic |
| eco- | house | Greek | οἶκος (oîkos) | ecology, economics, economy, ecumenism |
| ecto- | outside | Greek | ἐκτός (ektós) | ectoderm, ectoparasite, ectotherm |
| ed-, es- | eat | Latin | edere, esus | comedo, comestible, edacity, edibility, edible, escarole, esculent, esurience, esurient, inedia, inedible, inescation, inescate, obese, obesity |
| eg- | goat | Greek | αἴξ, αἰγός (aíx, aigós) | egophony |
| egypt- | Egypt, egyptian | Greek | αἰγυπτος (aigyptos) | egyptology |
| ego- | self, I (first person) | Latin, Greek | ego, ἐγώ (egṓ) | egocentric, egocentrism, egoism, egoistic, egomania, egomaniac |
| eiren- (iren-) | peace | Greek | εἰρήνη (eirḗnē) "peace" | irenic (eirenic), irenology |
| electr- | amber | Greek | ἤλεκτρον (ḗlektron) | electric, electricity, electrolysis, electrolyte, electromagnetic, electron, electronic, polyelectrolyte |
| elem-, alm- | pity | Greek | ἔλεος, ἐλέου (éleos, eléou), ἐλεημοσύνη (eleēmosúnē) | almoner, alms, eleemosynary |
| em-, empt- | buy | Latin | emere, emptus | adeem, adempt, ademption, exemption, preempt, redeem |
| eme- | vomit | Greek | ἐμεῖν (emeîn), ἔμετος (émetos) | antiemetic, emesis, emetic, emetine, emetophobia, haematemesis |
| emul- | striving to equal, rivaling | Latin | aemulus, aemulare | emulator |
| en-, el-, em- | in | Greek | ἐν (en) | emphasis, enclitic, enthusiasm, ellipsis, elliptic |
| enanti- | opposite | Greek | ἐναντίος (enantíos) | enantiomer, enantiomerism, enantiomorph, enantiornithine |
| encephal- | brain | Greek | ἐγκέφαλος (enképhalos) | encephalopathy |
| endo- | inside, within | Greek | ἔνδον (éndon) | endocardial, endocerid, endocrine, endocytosis, endogamy, endogenous, endorheic, endoscopy, endoskeleton, endosperm, endospore |
| engy- | narrow | Greek | ἐγγύς (engús) | Engystomops, hypengyophobia |
| ennea- | nine | Greek | ἐννέα (ennéa), ἐννεάς, ἐννεάδος (enneás, enneádos) | ennead, enneadic, enneagon, enneagram, enneahedron, enneamer, enneastyle, enneasyllabic, enneode |
| ens- | sword | Latin | ensis | ensiferous, ensiform |
| eo-, eos- | dawn, east | Greek | Ἠώς, Ἕως (Ēṓs, Héōs) | Eocene, eohippus, Eosentomon, eosin, eosinophil, eosinophilic, Eozoic |
| ep-, epi- | upon | Greek | ἐπί (epí) | ephedra, ephemeral, ephemeris, epicenter, epidemic, epilog, epiphany, episteme, epistemic, epistemology, epitaph, epitaphios, epithet, epitome, epoch, eponymous |
| equ-, -iqu- | even, equal, level | Latin | aequus | equal, equanimity, equate, Equator, equilibrium, equinox, equipoise, equity, equivalence, equivocal, equivocate, iniquity |
| equ- | horse | Latin | equus | equestrian |
| ere- | row | Greek | ἐρέσσειν (eréssein), ἐρέτης (erétēs) "rower", ἐρετμόν (eretmón), εἰρεσία | trireme, trierarch, hyperetes |
| erg-, org-, urg- | work | Greek | ϝέργον (wérgon), έργον (érgon), ἐργάτης (ergátēs), ὄργανον (órganon), ὀργανικός (organikós), ὄργια (órgia) | allergic, allergy, argon, demiurge, dramaturgy, endoergic, energetic, energy, erg, ergate, ergatocracy, ergodic, ergometer, ergonomics, ergophobia, exoergic, gamergate, georgic, heterorganic, homorganic, liturgy, metallurgy, microorganism, organ, organic, organism, organist, organize, organogenesis, organoid, organoleptic, orgiastic, orgy, parergon, surgeon, synergism, synergy, theurgic, theurgist, theurgy, zymurgy |
| erot- | (sexual) love | Greek | ἔρως, ἔρωτος (érōs, érōtos) | erogenous, erotic, erotomania, erotophilia, erotophobia |
| err- | stray | Latin | errare | aberrance, aberrancy, aberrant, aberration, err, errant, erratic, erratum, erroneous, error, inerrant |
| erythr- | red | Greek | ἐρυθρός (eruthrós), ἐρύθημα (erúthēma) | erythema, Erythraean, erythraemia, erythroblastopenia, erythrocyte, erythrocytosis, erythromelalgia, erythrophobia, erythrophore, erythroprosopalgia |
| eso- | within | Greek | ἔσω (ésō) | esophoria, esoteric, esotericism, esotropia |
| eth- | custom, habit | Greek | ἐθεῖν (etheîn), ἦθος (êthos) | ethic, ethics, ethology, ethos |
| ethm- | sieve, sift | Greek | ἠθεῖν (ētheîn), ἠθμός (ēthmós); ἤθειν (ḗthein) | ethmoid |
| ethn- | people, race, tribe, nation | Greek | ἔθνος (éthnos), ἐθνικός (ethnikós) | ethnarch, ethnarchy, ethnic, ethnoarchaeology, ethnography, ethnomusicology, polyethnic |
| etym- | true | Greek | ἔτυμος (étumos) | etymologic, etymologicon, etymologist, etymologize, etymology, etymon |
| eu- | well, good | Greek | εὖ (eû) | aneuploidy, eudaemon (eudemon), eukaryote, euphony, euphoria, euphoric, euploid, euthanasia |
| eur- | wide | Greek | εὐρύς (eurús), εὖρος "breadth, width" | aneurysm, Europe, eurypterid, microaneurysm |
| ex-, e-, ef- | outside, out of, from, out | Latin | ex | exclude, exist, exit, extend, extrude |
| exo- | outside | Greek | ἔξω (éxō) | exogamy, exoplanet, exoskeleton, exosome, exosphere, exoteric, exothermic, exotic, exoticism, exotropia |
| extra- | outer | Latin | extra, extraneus and exterus | estrange, estrangement, exterior, extra, extraneous, extraordinary, strange |
| extrem- | outermost, utmost | Latin | extremus | extreme, extremity, extremophile |
