helpmate
noun (formal or literary)a helpful partner, especially a wife 得力的伴侣；（尤指）贤内助 Word Originlate 17th cent. (as helpmeet): from a mistaken reading of Gen. 2:18, 20, where Adam's future wife is described as “an help meet for him” (i.e. a suitable helper for him). The variant helpmate came into use in the early 18th cent.