pronunciation (n.)

early 15c., pronunciacioun, "mode in which a word is pronounced," from Old French prononciacion (13c.) and directly from Latin pronuntiationem (nominative pronuntiatio) "act of speaking, utterance, delivery," also "proclamation, public declaration," noun of action from past-participle stem of pronuntiare "announce" (see pronounce). The -t- was restored in the English word 16c.