sure enough vs surely

sure enough and surely both are adverbs.

Word	Noun	Adjective	Verb	Adverb
sure enough	No	No	No	Yes
surely	No	No	No	Yes

As adverbs, sure enough and surely are synonyms defined as:

sure enough and surely: definitely or positively (`sure' is sometimes used informally for `surely')

Other synonyms of sure enough include certainly, for certain, for sure, sure, sure as shooting.

sure enough (adverb)	surely (adverb)
as supposed or expected	definitely or positively (`sure' is sometimes used informally for `surely')
definitely or positively (`sure' is sometimes used informally for `surely')