maternal

Her maternal grandfather was a famous painter who lived in Paris.

(Chinese) 她的外祖父（母亲方的祖父）是一位住在巴黎的著名画家。

The cat showed strong maternal instincts by nursing the abandoned puppies.

(Chinese) 这只猫通过喂养被遗弃的小狗表现出了强烈的母性本能。