Paragoge n. : The addition of a letter or syllable to the end of a word, as withouten for without.

Paragoge n. : Coaptation.

Example:
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Taxonomy
Paragoge, vowel, consonant, languages, free encyclopedia, loss, front vowels, vowel harmony, search, syllables, silence, boundary change, contraction, counterpart, Diachronic, loanwords, An Introduction to Historical Linguistics, epenthesis.

Defination from the web:
Paragoge is the addition of a sound to the end of a word. Often, this is due to nativization, and a logical counterpart of epenthesis, particularly vocalic epenthesis. ... [edit] Paragoge in loanwords ...