Etymograph

English

grandpaternal

From grand- + paternal.

A compound of grand- + paternal

Middle English

English grand-

Proto-Indo-European *ph₂tḗr ‘father’

…

Latin pater ‘father’

Latin paternus ‘of or pertaining to a father, paternal’

Vulgar Latin paternālis

Old French paternal ‘of a father’

English paternal

Today it means

adj of or relating to a grandfather

Language periods are conventional ranges, not dates for this word.

Etymograph / grandpaternal