originally vs earlier

originally is not an adjective while earlier is an adjective.

Word	Noun	Adjective	Verb	Adverb
originally	No	No	No	Yes
earlier	No	Yes	No	Yes

As adverbs, originally and earlier are synonyms defined as:

Other synonyms of originally include in the beginning, in the first place, to begin with.

originally (adjective)	earlier (adjective)
	(comparative and superlative of `early') more early than; most early

originally (adverb)	earlier (adverb)
in an manner suggesting originality	earlier in time; previously
with reference to the origin or beginning	comparatives of `soon' or `early'
before now	before now