American Heritage® Dictionary of the English Language, Fourth
Edition - adj. Given to complaining; peevish. - adj. Expressing
a complaint or grievance; grumbling: a querulous voice;
querulous comments. Century Dictionary and Cyclopedia -
Complaining; habitually complaining; disposed to murmur or
express dissatisfaction: as, a querulous man. - Expressing
complaint; proceeding from a complaining habit: as, a querulous
tone of voice. - Synonyms and See plaintive and petulant. GNU
Webster's 1913 - adj. obsolete Given to quarreling; quarrelsome.
- adj. Apt to find fault; habitually complaining; disposed to
murmur. - adj. Expressing complaint; fretful; whining. - adj.
habitually complaining - Late 15th century: From late Latin
querulosus, from Latin querulus, from queri (to complain).
(Wiktionary) - Middle English querulose, litigious, quarrelsome,
from Old French querelos, from Late Latin querulōsus, querulous,
from Latin querulus, from querī, to complain; see kwes- in Indo-
European roots. (American Heritage® Dict