helpmate

Agreeably to his usual practice, he had retired early to bed, leaving the household cares and duties to his helpmate.

Had you been, like my nephew, a wrestler for bread with the wilderness, what helpmate would your Lilian have been to you?

She was not the love of his life, but she had been a helpmate for many years.

She did not want to be all helpmate, practical comrade; she had fed herself with this delusion during the years of loneliness.