You searched for: “to promise
A unit related to: “to promise
(Latin: betrothed man, groom; betrothed woman, bride; both come from sponsus, past participle of spondere, "to promise, betroth" from Old French, espous [masculine, male]; espouse [feminine, female])
(Latin: to bind oneself; to pledge; to promise solemnly; to adopt and support a cause)
(Latin: affirm, wish, commit; to promise solemnly, to pledge, to give earnestly)