To Get Dark
To End
intransitive verb, ichidan verb
You've been so busy with your livelihood, you didn't even notice it's started to get dark outside. When you're doing lots of living, days and seasons just seem to end rather quickly like that.
Alternatively, think about how rare (れる) it is to get dark. It really only happens once every 24 hours. A pretty rare occurence if you ask me.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You learned this reading when you learned 暮らす, so if you can remember that, you should be able to remember this one too!
早くしないと、日が暮れるわよ。
If you don’t hurry up, it will get dark.