anaptyxis

/ˌænəpˈtɪksɪs/

noun

  1. The epenthesis (insertion) of a vowel; svarabhakti: for example, the middle ‘-a-’ in thataway, or use of infixes -i- and -o- in coining English words on classical roots.

Synonyms: svarabhakti
Antonyms: excrescence