| A | B |
| mater, matris | mother |
| matrix | the surrondings within which something begins or develops |
| matriarchy | a society ruled or controlled by women |
| matriculate | to register as a student at a college or university |
| pater, patris | father |
| patriarch | the head of the family or tribe/an old testament ancestor/a founding father or wise man |
| patrimony | a family inheritance |
| patronage | support; encouragement/ business clientele; customers |
| patronize | to go regularly/ to treat someone as inferior |
| patronymic | name derived from a paternal ancestor |
| frater, fratris | brother |
| fraternal | pertaining to brothers; brotherly |
| fraternize | to be friendly with/ to socialize with an enemy population |
| avunculus, avunculi | uncle |
| avuncular | like an uncle |
| familia | family |
| familial | having to do with the family |
| uxor, uxoris | wife |
| uxorious | dominated by one's wife |
| gamos | marriage |
| bigamy | marriage to two mates |
| monogamy | marriage to one mate |