verb / noun
quaff
KWAF/kwæf/
To drink heartily or in large gulps, or an act of doing so.
The thirsty man quaffs water from a large mug, tipping his head back.

Etymology
Quaff has long meant drinking in large draughts, but its origin is obscure. It may imitate a sound or relate to Low German quassen, “to overindulge in food and drink”; neither explanation is established.
In context
do not quaff it down at a gulp in that way never drink a whole glass full of anything at once
More examples
- The guests quaffed cider as they celebrated the harvest.
- She takes a hearty quaff of lemonade.
- They sit by the fire, quaffing beer and telling stories.
Forms
quaff · quaffs · quaffed · quaffing