proclaim (v.)youdaoicibaDictYouDict[proclaim 词源字典]
late 14c., proclamen, from Latin proclamare "cry or call out," from pro- "forth" (see pro-) + clamare "to cry out" (see claim (v.)). Spelling altered by influence of claim. Related: Proclaimed; proclaiming; proclaimer.[proclaim etymology, proclaim origin, 英语词源]