to drink in large draughts till one loses breath

d, this—not kneyfa or qneyfa as in the Editions—is the true form of the word, which has become obsolete in Icel., but remains in Engl.; [Engl. quaff = to drink in large draughts till one loses breath]:—to quaff; Egill kveyfði af horninu í einum drykk, Eg. 557; Egill drakk um hríð, ok kveyfði hvert horn er at honum kom, 559, Trist. 10; kveyfa ker, Mag. 68; hlífðit Kristr þá er kólgu hrafn kveyfði með stöfnum, Christ helped not when the sea raven (his ship) quaffed water from stem to stern, was swamped, Bs. i. 16 (in a verse).