To Warm Up
To Get Warm
intransitive verb, godan verb
This word consists of kanji with hiragana attached. Because the hiragana ends in an う sound, you know this word is a verb. More specifically, this verb ends in まる, and most verbs with this ending are intransitive, meaning the action or change happens on its own.
The kanji 温 means warm. So this verb means to get warm or to warm up. To help you distinguish this from 温める, you could think of a circle (まる) rolling down a hill all by itself, and getting warmer and warmer as it picks up speed.
The kanji reading is the same as 温かい and 温める.
体が温まる
body warms up
手が温まる
hand warms up
心が温まる
heart warms up
シャワーの水が温まるまで、ここで待ちます。
Until the shower water warms up, I'll wait here.
このヒーターだと、部屋が温まるのにかなり時間がかかる。
With this heater, it takes so much time for the room to get warm.
一キロ走って、体が温まってきた。
After running 1km, my body's getting warmed up.