| Term | Definition |
| MATER,MATRIS | "mother" |
| matrix | (noun) The surroundings within which something begins or develops |
| matriarchy | (noun) a society ruled or controlled by women |
| matriculate | (verb) to register as a student at a college or university |
| PATER,PATRIS | "father" |
| patriarch | (noun) the male head of a family or tribe |
| patrimony | (noun) a family inheritance |
| patronage | (noun) support;encouragement |
| patronize | (verb) to go to regularly |
| patronymic | (noun) name derived from a paternal ancestor |
| FRATER, FRATRIS | "brother" |
| fraternal | (adj) pertaining to brothers;brotherly |
| fraternize | (verb) to be friendly with |
| AVUNCULUS, AVUNCULI | "uncle |
| avuncular | (adj) like an uncle |
| FAMILIA | "family" |
| familial | (adj) having to do with the family |
| UXOR, UXORIS | "wife" |
| uxorious | (adj) dominated by one's wife |
| GAMOS | "marriage |
| bigamy | (noun) marriage to two mates |
| monogamy | (noun) marriage to a single mate |