prothetic

noun

1. Gram. the addition of a syllable or phoneme to the beginning of a word
2. Eastern Orthodox Ch.
   1. the preparation and preliminary oblation of the elements of the Eucharist
   2. the table on which, or the place where, this is done

Origin: LL < Gr, a placing before < protithenai, to set before < pro-, before + tithenai, to place, do