Dictionary / Vocabulary / 請け合う
うけあう
to undertake; to take on (task); to assure; to guarantee
Also written 受け合う、請合う、受合う
彼は私に援助すると請け合った。
He assured me of his help.
彼が君の申し出を引き受けるのは請け合うよ。
I bet that he'll accept your proposal.
私は彼の正直を請け合うことができない。
I can't answer for his honesty.