GROUCH
grouch, grump, crank, churl, crosspatch
(noun) a bad-tempered person
grouch, grumble, scold
(verb) show one’s unhappiness or critical attitude; “He scolded about anything that he thought was wrong”; “We grumbled about the increased work load”
Source: WordNet® 3.1
Etymology
Noun
grouch (plural grouches)
A complaint, a grumble, a fit of ill-humor. [from the late 19th c]
One who is grumpy or irritable. [from the early 20th c]
• I don't feel like hanging around with that grouch.
Synonym: Thesaurus:complainer
Verb
grouch (third-person singular simple present grouches, present participle grouching, simple past and past participle grouched)
(intransitive) To be grumpy or irritable; to complain. [from the early 20th c]
Synonyms
• See also complain
Source: Wiktionary