I’m lucky my wife never reads this blog, because she’d be a little miffed that I forgot spouses when I was doing family vocab a while back. Anyway, this is blessedly simple; the same root rendered masculine for husband and feminine for wife.

The root is زَوَجَ (zawaja), meaning “to pair” or “to couple.” “Husband” is زَوج (zawj), while “wife” is the feminine variant زَوجة (zawjah).