probably vs belike

probably and belike both are adverbs.

Word	Noun	Adjective	Verb	Adverb
probably	No	No	No	Yes
belike	No	No	No	Yes

As adverbs, probably and belike are synonyms defined as:

Other synonyms of probably include in all likelihood, in all probability, likely.

probably (adverb)	belike (adverb)
with considerable certainty; without much doubt	with considerable certainty; without much doubt
easy to believe on the basis of available evidence