Source : Webster's Revised Unabridged Dictionary (1913)

Epenthetic \Ep`en*thet"ic\, a. [Gr. ?: cf. F.
   ['e]penth['e]tique.] (Gram.)
   Inserted in the body of a word; as, an epenthetic letter or
   sound.

Source : WordNet®

epenthetic
     adj : of or pertaining to epenthesis [syn: {parasitic}]