to express dissatisfaction, pain, uneasiness, censure, resentment, or grief; find fault: He complained constantly about the noise in the corridor.
2.
to tell of one's pains, ailments, etc.: to complain of a backache.
3.
to make a formal accusation: If you think you've been swindled, complain to the police.
Origin: 1350–1400; Middle English compleinen < Anglo-French compleign-, stem of compleindre,Old French complaindre < Vulgar Latin *complangere, equivalent to Latin com-com- + plangere to lament; see plaint
Synonyms 1.Complain,grumble,growl,whine are terms for expressing dissatisfaction or discomfort. To complain is to protest against or lament a wrong: to complain about high prices. To grumble is to utter ill-natured complaints half to oneself: to grumble about the service. Growl may express more anger than grumble: to growl in reply to a question. To whine is to complain in a meanspirited way, using a nasal tone: to whine like a coward, like a spoiled child.
c.1370, from stem of O.Fr. complaindre "to lament," from V.L. *complangere, orig. "to beat the breast," from L. com- intensive prefix + plangere "to strike, beat the breast," from PIE base *plag- "to strike." Older sense of "lament" died out 17c.