Querimoniously

Part of speech: adverb

Definitions

1. The act of expressing grievances or complaints in a manner that is resentful or petulant is often observed in conversational contexts
2. Complaining in a whiny or sour manner tends to reflect a negative attitude towards situations or outcomes
3. A disposition characterized by frequent, grumbling complaints reveals a tendency towards dissatisfaction in interactions

Etymology: "Querimonious" is an adjective meaning full of complaint, and "querimoniously" is simply that adjective with the adverbial ending "-ly" attached, so it describes doing something in a complaining, grumbling manner. The adjective itself comes from "querimony," an older English word for a complaint or lament, which traces back through Latin "querimonia," built on "queri," "to complain." Adding "-ly" to an adjective ending in "-ous" is a routine English process, which is why the adverb needs no separate history of its own: it is the same complaint-word, turned into a description of how someone grumbles.