From Latin "mater" (mother):
* Maternal: Relating to a mother.
* Maternalism: The policy or practice of a mother state.
* Matriarch: A female head of a family or tribe.
* Matriarchy: A society ruled by women.
* Maternalistic: Relating to or resembling a mother.
* Matricide: The killing of one's mother.
* Materfamilias: The female head of a household in Roman law.
From Latin "materia" (matter):
* Material: The physical substance that something is made of.
* Materialistic: Excessively concerned with material possessions.
* Immaterial: Not consisting of matter; spiritual.
* Matter: Physical substance; subject of discussion.
* Materialize: To become real or actual.
* Materiel: Equipment, supplies, and other materials needed for war or other activities.
Other words with "mater" as a root:
* Alma Mater: A school or university that someone has attended.
* Mater Dolorosa: (Latin for "Mother of Sorrows") A representation of the Virgin Mary mourning the death of Jesus.
Let me know if you would like to know more about any of these words.