matr(i)-

Also matro‑.

A mother.

Latin mater, matr‑, mother.

Kinship that is matrilineal is based on the mother or the female line; a matriarch is a woman who is the head of a family or tribe, or an older woman powerful within a group; matricide (Latin caedere, to strike down or slay) is either the killing of one's mother, or a person who kills their mother; matrimony and matron derive from the same Latin root.