報う
Godan
1
Godan verb with 'u' ending
to reward;to recompense;to repay
See also:
報いる (むくいる)
彼は友だちの親切にむくいたいと思った。
He wanted to repay the kindness of his friends.
2
Godan verb with 'u' ending
to retaliate;to get revenge
Other forms
酬う 【むくう】 (rarely used kanji form)