(w)

(lǎo) grandma (maternal)

(w)

(mǔ) governess; old woman

姥姥 (w)

(lǎolao) (informal) mother's mother; maternal grandmother

姥娘 (w)

(lǎoniáng) maternal grandmother (dialectal)

姥爷 (w)

(lǎoye) maternal grandfather (dialectal)