godan verb (-ku), intransitive verb
become wintry; feel like winter
Describes the atmosphere, scenery, or weather turning winter-like. Often used in literary or poetic descriptions.
木枯らしが吹いて、すっかり冬めいてきた。
The cold wintry wind blows, and it has become quite wintry.
街のイルミネーションが冬めいた雰囲気を醸
The city illuminations create a wintry atmosphere.