petronius
Could not find Petroni in Logeion dictionaries.
Petroni Adjective: masculine genitive singular, Adjective: neuter genitive singular of petronius
Petroni Proper-name noun: masculine vocative singular, Proper-name noun: masculine genitive singular of Petronius
Petroni Noun: masculine dative singular of petro
pē̆trōnĭus, a, um, adj. [1. petra],
- rock-, crag-, mountain- (very rare): canes, Grat. Cyneg. 202.
pĕtrōnĭus, ĭi (?), m.: (canis), cane per la caccia in mezzo alle rocce Graz.