From Middle Dutchquackele, from *kwakila (compare Low German Quakkel), blend of *kwak(“quack”) and Proto-Germanic*hwahtilō(“quail”) (compare dialectal Dutch wachtel, German Wachtel), diminutive of Proto-Indo-European*kʷoḱt- (compare Latin co(c)turnīx, Lithuanian vaštaka, Sanskrit चातक(cātaka, “pied cuckoo”)), metathesis of *u̯ortokʷ-(“quail”) (compare Dutch kwartel). More at kwartel.