An example of a spouse is your husband.
Origin of spouseMiddle English spus from Old French espous from Classical Latin sponsus, betrothed, past participle of spondere: see sponsor
transitive verbspoused, spous′ing
transitive verbspoused, spous·ing, spous·es Archaic
Origin of spouseMiddle English from Old French spous from Latin spōnsus from past participle of spondēre to pledge ; see spend- in Indo-European roots.
(third-person singular simple present spouses, present participle spousing, simple past and past participle spoused)