Adjective – Paternal
1 : of or relating to a father
He did not neglect his paternal responsibilities after the divorce.
He offered them some paternal (=fatherly) advice.
2 always used before a noun : related through the father
his paternal grandparents (=the parents of his father)
a paternal aunt/uncle
— paternally adverb
He smiled at them paternally.
paternally inherited genes