mid-14c., pronouncen, "to declare officially, proclaim, announce;" late 14c., "to speak, utter" (words, a language, etc.), "form or articulate with the organs of speech," from Old French prononcier "declare, speak out, pronounce" (late 13c., Modern French prononcer) and directly from Late Latin pronunciare, from Latin pronuntiare "to proclaim, announce; pronounce, utter," from pro "forth, out, in public" (see pro-) + nuntiare "announce," from nuntius "messenger" (from PIE root *neu- "to shout").
With reference to the mode of sounding words or languages, it is attested by 1610s (pronunciation in the related sense is attested from early 15c.). Meaning "make a statement," especially authoritative one (as in pronounce judgment) is from early 15c. Related: Pronounced; pronouncing.
1570s, "spoken," past-participle adjective from pronounce (v.). Figurative sense of "emphatic, strongly marked or defined" is attested by 1741. Related: Pronouncedly.
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.
Related: Judged; judging. Spelling with -dg- emerged mid-15c. The Old English word was deman (see doom (n.)). The Latin word also is the source of Spanish juzgar, Italian giudicare.