also: ぬくめざけ
noun
warm sake
Warmed sake, traditionally drunk on the 9th day of the 9th month of the lunar calendar to ward off illness. Now simply refers to heated sake.
寒い夜には温め酒が恋しくなる。
On cold nights, I start to crave warm sake.
この居酒屋では、冬になると温め酒を出す。
This izakaya serves warm sake in winter.
Compound of 温め (warm) + 酒 (sake). The tradition of drinking warm sake on the 9th day of the 9th month is an old custom, but the word now simply means warmed sake.