helpmate
/ˈhɛlpmeɪt/Definitions
1. noun
a person, especially a woman, who is a partner or assistant to someone, especially in domestic or family matters
“The young woman was a devoted helpmate to her elderly mother.”
2. noun
a person who is a supporter or assistant in a particular activity or profession
“The new intern proved to be a valuable helpmate to the team during the project.”