arciform vs arching

arciform and arching both are adjectives.

Word	Noun	Adjective	Verb	Adverb
arciform	No	Yes	No	No
arching	No	Yes	No	No

As adjectives, arciform and arching are synonyms defined as:

Other synonyms of arciform include arced, arched, arcuate, bowed.

arciform (adjective)	arching (adjective)
forming or resembling an arch	forming or resembling an arch