noun
paterfamilias
pat-er-fuh-MIL-ee-ass/ˌpætərfəˈmɪliæs/
The male head of a family or household.
As paterfamilias, my grandfather has the final say at home.

Etymology
Literally “father of the household,” the title referred to its male head. The household could include servants as well as relatives, giving the term a broader scope than fatherhood alone.
More examples
- The family's aging paterfamilias still manages the household budget.
- She challenges the paterfamilias when he tries to choose her career.
- The paterfamilias welcomes relatives to the annual family dinner.
Forms
paterfamilias · patresfamilias · paterfamiliases
Similar words
- patriarch
- Often emphasizes an older man's authority over an extended family.
- householder
- Refers to a household's owner or tenant, regardless of gender.