Webster's 1913 Dictionary
EPI-
Ep "i-. Etym: [Gr. api besides, and prob. to L. ob to, before, on account of, and perh. to E. of, off. ]
Defn: A prefix, meaning upon, beside, among, on the outside, above, over. It becomes ep- before a vowel, as in epoch, and eph- before a Greek aspirate, as in ephemeral.
New American Oxford Dictionary
epi-
epi- (also ep- ) ▶prefix 1 on; upon: epicycle | epigraph. 2 above: epicotyl | epicontinental. 3 in addition: epigenesis | epiphenomenon. ORIGIN from Greek epi ‘upon, near to, in addition. ’
Oxford Dictionary
epi-
epi- |ˈɛpi |(also ep- ) ▶prefix 1 upon: epigraph. 2 above: epicontinental. 3 in addition: epiphenomenon. ORIGIN from Greek epi ‘upon, near to, in addition ’.
Duden Dictionary
epi-
epi- , Epi- Präfix Epi- |e pi- E pi- |griechisch epí =(dar )auf, darüber; über – hin; hinzu bedeutet in Bildungen mit Substantiven auf, darüber, darauf (örtlich und zeitlich ), bei, [da ]neben Epibiont, Epizentrum
French Dictionary
épi-
épi- préf. préfixe Élément du grec signifiant « sur ». : Épiderme.
Spanish Dictionary
epi-
epi- Elemento prefijal de origen griego que entra en la formación de nombres y adjetivos con el significado de ‘sobre ’, ‘en la superficie ’:epicarpio, epicentro .
The Wordsmith Dictionary