- (intransitive) To complain peevishly.
- (intransitive) To talk loudly and persistently.
- (transitive) To repeat on and on, usually loudly or in complaint.
- (intransitive, rare) To make an outcry; to clamor.
babble, bark, battle cry, bawl, bellow, call, caterwaul, chat, chatter, cheer, clack, creak, cry, gab, gabble, hail, halloo, holler, hollo, hoot, howl, hurrah, jaw, keen, pipe, prattle, pule, rallying cry, roar, screak, scream, screech, shout, shriek, shrill, skirl, skreigh, squall, squawk, squeak, squeal, ululate, ululation, wail, war cry, war whoop, whimper, whine, whistle, whoop, wrawl, yak, yap, yawl, yawp, yell, yelp, yo-ho, yowl
Probably from Middle Dutch jammeren cognate and reinforced by Middle English yeoumeren (“to mourn, complain”) < Old English geomrian (“to lament”) < ġeōmor (“sorrowful”) possibly imitative in origin and akin to German Jammer.
- “Yammer” in the Online Etymology Dictionary, Douglas Harper, 2001