peculiar vs peculiarly

peculiar is an adjective but peculiarly is not an adjective.

Word	Noun	Adjective	Verb	Adverb
peculiar	No	Yes	No	No
peculiarly	No	No	No	Yes

peculiar (adjective)	peculiarly (adjective)
characteristic of one only; distinctive or special
unique or specific to a person or thing or category
beyond or deviating from the usual or expected
markedly different from the usual; special

peculiar (adverb)	peculiarly (adverb)
	in a manner differing from the usual or expected
	uniquely or characteristically
	to a distinctly greater extent or degree than is common