Definify.com

Webster 1913 Edition

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Noun.

[NL., fr. Gr. [GREEK] a putting on;

ἐπί

upon + [GREEK] to place.]

The addition of a letter at the end of a word, without changing its sense;

as,

numb

for

num

whilst

for

whiles

epithesis ‎(countable and uncountable, plural epitheses)

(linguistics) The addition of a letter or sound at the end of a word, without changing its meaning, as in "numb" for "num" or "whilst" for "whiles".