obligor
noun [ C ] law specialized uk/ˌɒb.lɪˈɡɔːr/ us/ˌɑː.bləˈɡɔːr/
义务人，债务人
a person or group who must give something such as a payment or benefit to someone, according to a law or legal agreement
On a bail bond, the accused and the sureties are the obligors, and the government is the obligee. 在保释担保中，被告人和保证人是支付方，政府是收款方。
Compare: obligee