Leonine means resembling a lion in look or bearing. A leonine head, leonine features, a leonine mane of hair.
It is used almost entirely of hair and of bearing, and it is a compliment about presence rather than about ferocity. Several popes took the name Leo, and Leonine has a separate architectural sense in Rome from the wall one of them built.
1adjectiveleonineResembling a lion in look or bearing.
“The old actor had a leonine head of thick grey hair.”
leonine is a quality.
Latin leoninus comes from leo, a lion, which reached Latin from Greek leon.
Ancient Greek
λέων — lion
Latin
leōnīnus — of or pertaining to a lion
Old French
leonin
Middle English
leonin,leonine — characteristic of a lion, lionlike
English, today
leonine
Built from
From Late Middle English leonin,leonine (“characteristic of a lion, lionlike”), from Old French leonin, and from its etymon Latin leōnīnus (“of or pertaining to a lion”), from leō (“lion”) (from Ancient Greek λέων (“lion”); further etymology uncertain) + -īnus.
Etymology from Wiktionary, CC BY-SA