Basking, mother or man's title of respect for lover, extended meaning, and title of respect for woman.
Also refers to, from mother (menstruation), mother's mother (grandma), mother's mother (menstruation).
The extended meaning, the honorific title of a venerable old woman, later became the honorific title of a woman.
You can address your grandmother by respecting a lady.
Extended data
Grandma's daughter: mom/mom. Symmetry: female parent (female)/male parent (male).
Grandma's son-in-law: Dad/Dad. Symmetry: female parent (female)/male parent (male).
Grandma's daughter: aunt/nanny/menstruation. Symmetry: niece/niece.
Grandma's son-in-law: uncle/father/aunt. Symmetry: menstruation/menstruation. (eldest sister-in-law/nephew's son)
Grandma's son: uncle/uncle. Symmetry: niece/niece.
Grandma's daughter-in-law: aunt/aunt. Symmetry: menstruation/menstruation. (Sister-in-law/Sister-in-law)
Baidu Encyclopedia-Grandma (Title)