paragoge

Noun

par=a=go=ge

CIDE DICTIONARY

paragoge, n. [L., fr. Gr. paragwgh`, from para`gein to lead beside, protract; para` beside + 'a`gein to lead.].

The addition of a letter or syllable to the end of a word, as withouten for without. [1913 Webster]
Coaptation. Dunglison. [1913 Webster]

paragoge, n. the addition of a letter or syllable to a word in some contexts or as a language develops (e.g. t in peasant).

Derivative

paragogic adj.

Etymology

LL f. Gk paragoge derivation (as PARA-(1), agoge f. ago lead)