prothesis

noun3

1. •
   (rhetoric) The prepending of phonemes at the beginning of a word without changing its morphological structure, as in Spanish esfera from Greek (via Latin) sphaera (“sphere”) (without prothesis the word would have become *sfera).
2. •
   The preparation and preliminary oblation of the Eucharistic bread and wine in the Divine Liturgy of the Eastern Orthodox and Eastern Catholic Churches.
3. •
   Credence table.