proclaim (v.)

"make known by public announcement, promulgate," especially by herald or crier, late 14c., proclamen, from Latin proclamare "cry or call out," from pro "forth" (from PIE root *per- (1) "forward") + clamare "to cry out" (from PIE root *kele- (2) "to shout"). Spelling altered by influence of claim. Related: Proclaimed; proclaiming; proclaimer.