wassail

詳細解釋：

was.sail

n.（名詞）

A salutation or toast given in drinking someone`s health or as an expression of good will at a festivity.
祝酒辭：節日時喝酒祝某人身體健康或表達良好願望的敬辭或祝頌
The drink used in such toasting, commonly ale or wine spiced with roasted apples and sugar.
祝酒用麥芽酒，祝酒用葡萄酒：祝酒時用的酒，一般是用烤蘋果和糖調味的麥芽酒或葡萄酒
A festivity characterized by much drinking.
酒宴：以狂飲為特徵的宴會
v.（動詞）
was.sailed,was.sail.ing,was.sails
v.tr.（及物動詞）
To drink to the health of; toast.
向…祝酒：為…的健康而乾杯；祝酒
v.intr.（不及物動詞）
To engage in or drink a wassail.
歡宴：舉行或參加酒宴

來源：
Middle English
中古英文
contraction of wôshôil [be healthy]
wôshôil的縮寫 [是健康的]
from Old Norse ves heill
源自 古斯堪的納維亞語 ves heill
ves [imperative sing. of] vera [to be] * see wes-
ves [] vera的祈使語氣動詞單數 [成為] *參見 wes-
heill [healthy] * see kailo-
heill [健康的] *參見 kailo-

【引伸】
was.sailer
n.（名詞）