English
leoninely
From leonine + -ly.
Formed from leonine + -ly
Ancient Greek λέων ‘lion’
Latin leō ‘lion’
Latin leōnīnus ‘of or pertaining to a lion’
Old French leonin
Middle English leonin ‘characteristic of a lion, lionlike’
English leonine
Today it means
adv In a leonine manner.
Language periods are conventional ranges, not dates for this word.
Etymograph / leoninely