quaff

• vt. 大量に飲む
• vi. 大量に飲む

おそらくオノマトペで、酒を飲む音を真似ているのだろう。

quaff (v.)

1510s (implied in quaffer), perhaps imitative, or perhaps from Low German quassen "to overindulge (in food and drink)," with -ss- misread as -ff-. Related: Quaffed; quaffing. The noun is attested by 1570s, from the verb.

1. I went down to the bar to quaff a brew.

私はバーにビールを飲みに行きました.

2.His quaff ，did a cup again then.

彼は一気に飲み干し、そしてもう1杯乾いた。