| Term | Definition |
| Mater, Matris | mother |
| matrix | n. the surroundings 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 | 1. the male head of a family or tribe; 2. an Old Testament ancestor; 3. a founding father or wise man |
| patrimony | a family inheritance |
| patronage | 1. support, encouragement; 2. Business clientele |
| patronize | 1. to go to regularly; 2. to treat someone as an inferior |
| patronymic | a name derived with an affix (such as -son in English or O'- in Irish) from the name of your father or a paternal ancestor |
| Frater, Fratris | brother |
| fraternal | pertaining to brothers; brotherly |
| fraternize | 1. to be friendly with; 2. to socialize with an enemy population |
| fraternity | brotherliness, brotherhood; a social or professional club of males |
| matricide | n. The killing, especially the murdering, of one's mother. |
| patricide | act of killing (or killer of) one's father |
| fraticide | act of killing (or killer of) one's brother |
| confrere | a person who is member of your class or profession |
| fraternization | associating with others in a brotherly or friendly way |
| patronizing | (used of behavior or attitude) characteristic of those who treat others with condescension |
| Avunculus, Avunculi | uncle |
| avuncular | like an uncle in kindness or indulgence |
| Familia | family |
| familial | having to do with the family |
| familiar | well known, commonly seen or heard, and easily recognized |
| family | primary social group |
| Uxor, Uxoris | wife |
| uxorious | dominated by one's wife |
| Gamos | marriage |
| bigamy | having two spouses at the same time |
| bigamist | someone who marries one person while already legally married to another |
| bigamous | adjective - guilty of bigamy |
| polygamy | marriage to several people at the same time |
| monogamy | having only one spouse at a time |
| monogamist | someone who practices monogamy (one spouse at a time) |
| monogamous | being married to one person (adj.) |
| gamete | reproductive cell |
| misogamy | n. hatred of marriage |