
1) Backbite 2) Bellyache 3) Bemoan 4) Bewail 5) Carp 6) Complain 7) Gripe 8) Grouse 9) Inveigh 10) Moan 11) Moaner 12) Nag 13) Pill 14) Quetch 15) Repine 16) Whine 17) Whiner 18) Yammer 19) Yammerer
Found on
https://www.crosswordclues.com/clue/kvetch

1) Beef or carp 2) Beef producer 3) Bellyache 4) Bellyacher 5) Carp 6) Chronically whine 7) Complain 8) Complain, complain, complain 9) Complain, Yiddish-style 10) Complainer 11) Crybaby 12) Gripe and grouse 13) Gripe chronically 14) Gripe constantly 15) Grouse or carp 16) Grumbler 17) Moaner 18) Slang for to complain, whine
Found on
https://www.crosswordclues.com/clue/kvetch

[English words of Yiddish origin] to complain habitually, gripe; as a noun, a person who always complains (from Yiddish קװעטשן kvetshn 'press, squeeze', cf. German quetschen 'squeeze')
Found on
http://en.wikipedia.org/wiki/List_of_English_words_of_Yiddish_origin

Kvetch is slang for to complain, whine.
Found on
http://www.probertencyclopaedia.com/browse/ZK.HTM
noun (Yiddish) a nagging complaint
Found on
https://www.encyclo.co.uk/local/20974

express complaints, discontent, displeasure, or unhappiness
Found on
https://www.vocabulary.com/lists/526658
No exact match found.