helpmeet

noun

1. A helpful partner, particularly a spouse.

   “[on vocabulary errors] … and helpmates for meet-helps—the difference of the meaning of the two words is so obvious, that it is surprising it should have escaped attention.—A person may be a helpmate and at the same time be very far from being a help-meet, which is here intended.”

   “When he went to Deborah and told her that the Lord had led him to ask her to be his wife, his holy helpmeet, she looked at him for a moment in what seemed to be speechless terror.”