- quarrel (n.1)
- "angry dispute," mid-14c., "ground for complaint," from Old French querele, from Latin querella "complaint," from queri "to complain, lament." Replaced Old English sacan. Sense of "contention between persons" is from 1570s.
- quarrel (n.2)
- "square-headed bolt for a crossbow," early 13c., from Old French quarel, from Vulgar Latin *quadrellus, diminutive of Late Latin quadrus (adj.) "square," related to quattuor "four" (see four). Archaic sense of "square or diamond-shaped plane of glass" first recorded mid-15c.
- quarrel (v.)
- late 14c., "to raise an objection;" 1520s with the meaning "to contend violently, to fall out," from quarrel (n.1). Related: Quarrelled; quarrelling.