| Mater, matris | Latin: mother |
| matrix | Noun: the surroundings within which something begins or developes |
| matriarchy | noun: a society ruled or controlled by women |
| matriculate | verb: to register as a student at a college or university |
| Pater, patris | Latin: father |
| patriarch | noun: the male head of a family or tribe. |
| patrimony | noun: a family inheritance |
| patronage | noun: support, encouragement; business clientele; customers |
| patronize | verb: to go to regularly |
| patronymic | noun: name derived from a paternal ancestor |
| Frater, fratris | Latin: brother |
| fraternal | adjective: pertaining to brothers; brotherly |
| fraternize | verb: to be friendly with; to socialize with an enemy population. |
| Avunculus, avunculi | Latin: uncle |
| avuncular | adjective: like an uncle |
| Familia | Latin: family |
| familial | adjective: having to do with the family. |
| Uxor, uxoris | Latin: wife |
| uxorious | adjective: dominated by one's wife |
| Gamos | Greek: marriage |
| bigamy | noun: marriage to two mates |
| monogamy | noun: marriage to one mate |