"Plighter" is a word in ENGLISH

To promise to take (as a future spouse); to plight one's troth to.

Word of promise; word of honor; plighted faith; especially (Mil.), promise, upon one's faith and honor, to fulfill stated conditions, …

To give or pass as a security; to guarantee; to engage; to plight; as, to pledge one's word and honor.

sáad - Promise, vow, engagement, undertaking, word, pledge; to vow, promise, undertake, engage, bind—, pledge—, commit—, take upon—, oneself, give—, …

tákga - Promise, engagement, pledge, plight, troth; to promise, to give—, pass—, pledge—, plight—,—one’s word,—one’s honour,—one’s credit,—one’s troth. Ang mga …

túg-an - Promise, declaration, undertaking, word, pledge, engagement; to promise, undertake to, engage to, bind—, pledge—, commit—, oneself to, give—, …