noun
promisor
Legal term for the party who makes a promise, especially in contract law. Contrasts with 要約者 (offeror).
See also: 要約者
諾約者は契約に基づき、相手方に金銭を支払う義務を負う。
The promisor is obligated to pay money to the other party under the contract.
Compound of 諾 (consent, agreement) + 約 (promise) + 者 (person). A modern legal coinage.