狂う, くるう
Conjugated: 狂った
Godan verb, Intransitive
1. to go mad, to lose one's mind, to go crazy, to go insane
2. to get out of order, to go amiss, to malfunction, to become imprecise
3. to go wrong (of a plan or expectation, etc.), to fall through, to get mixed up
4. to go crazy (over someone or something), to get enthusiastic, to go wild
彼はテニスに狂ってる。