Do you really want to send Webster 1913 a message saying you like their work?
E*pen"the*sis (?), n.; pl. Epentheses (#). [L., fr. Gr. ; + to put or set in.] Gram.
The insertion of a letter or a sound in the body of a word; as, the b in "nimble" from AS. n&emac;mol.
© Webster 1913.