paternal(pa·ter·nal)

http://oxforddictionaries.com/definition/paternal?region=us

Pronunciation:/pəˈtərnl, /

adjective

• of or appropriate to a father:he reasserted his paternal authority
• showing a kindness and care associated with a father; fatherly:my elders in the newsroom kept a paternal eye on me
• [attributive] related through the father:his father and paternal grandfather were porcelain painters

Derivatives

paternally

adverb

Origin:

late Middle English: from late Latin paternalis, from Latin paternus 'fatherly, belonging to a father', from pater 'father'