dur-
dura mater; outermost layer of the meninges
dynam-
power
dys-
faulty; difficult; bad; painful [if attached to a noun]; with difficulty; badly [if attached to an adjective or verb]
echin-
spiny [adjective]; spine [noun]
ecto-
outside
eiso-
in; into
electr-
electricity
en-
in; within
encephal-
encephalon; the brain
endo-
in; within
enter-
intestines
ento-
in; within
epi-
on; upon; toward
epididym-
epididymis
epipl-
omentum
episi-
vulva
equ-
equal
erg-
work
ergasi-
work
erot-
sexual desire; sexual act
erythr-
red
eso-
in; into
esophag-
esophagus
ethmoid-
ethmoid bone