protheses

noun
  1. 1

    The prepending of phonemes at the beginning of a word without changing its morphological structure, as in Spanish esfera from Latin sphaera (expected form would be *sfera).

Synonyms

Antonyms

noun
  1. 1

    A type of preparatory ceremony, part of the Divine Liturgy of the Eastern Orthodox Church

Source: https://en.wiktionary.org/wiki/protheses, https://en.wiktionary.org/wiki/prothesis