upward vs upwardly

upward is an adjective but upwardly is not an adjective.

Word	Noun	Adjective	Verb	Adverb
upward	No	Yes	No	Yes
upwardly	No	No	No	Yes

As adverbs, upward and upwardly are synonyms defined as:

upward and upwardly: spatially or metaphorically from a lower to a higher position

Other synonyms of upward include up, upwards.

upward (adjective)	upwardly (adjective)
extending or moving toward a higher place
directed up

upward (adverb)	upwardly (adverb)
spatially or metaphorically from a lower to a higher position	spatially or metaphorically from a lower to a higher position
to a later time