peculiarly vs specially

peculiarly and specially both are adverbs.

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

As adverbs, peculiarly and specially are synonyms defined as:

peculiarly and specially: to a distinctly greater extent or degree than is common

Other synonyms of peculiarly include especially, particularly.

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