PROM'ISER, noun One who promises; one who engages, assures, stipulates or covenants. Fear, says Dryden, is a great promiser We may say that hope is a very liberal promiser The import of a promise, when disputed, is not to be determined by the sense of the promiser nor by the expectations of the promisee. [Note. In law language, promisor is used, but without necessity or advantage.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI