許す, ゆるす
Conjugated: 許せない
Godan verb, Transitive, occ. written as 聴す
1. to permit, to allow, to approve, to consent to
also written as 赦す
2. to forgive, to pardon, to excuse, to tolerate
3. to exempt (someone) from, to remit, to release, to let off
See 自他ともに許す
4. to acknowledge, to admit
See 心を許す, See 気を許す
5. to trust, to confide in, to let one's guard down
あなたが後悔しているのなら許してあげよう。