Petrine
Concise Oxford English Dictionary © 2008 Oxford University Press:
Petrine /ˈpiːtrʌɪn/
▶adjective
- 1 Christian Theology relating to St Peter.
■ relating to the authority of the Pope, in his role as the successor of St Peter.
- 2 relating to Peter I of Russia.
'Petrine' also found in these Oxford entries:

