peculiarly vs especially

peculiarly and especially both are adverbs.

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

As adverbs, peculiarly and especially are synonyms defined as:

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

Other synonyms of peculiarly include particularly, specially.

peculiarly (adverb)	especially (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