accreditation vs prothesis

accreditation

noun
  • The giving of credentials. 

  • The granting of approval to an institution of higher learning by an official review board after the school has met certain requirements. 

  • The act of accrediting. 

prothesis

noun
  • Credence table. 

  • The preparation and preliminary oblation of the Eucharistic bread and wine in the Divine Liturgy of the Eastern Orthodox and Eastern Catholic Churches. 

  • The prepending of phonemes at the beginning of a word without changing its morphological structure, as in Spanish esfera from Latin sphaera (“sphere”) (without prothesis the word would have become *sfera). 

How often have the words accreditation and prothesis occurred in a corpus of books? (source: Google Ngram Viewer )