arching vs arced

arching and arced both are adjectives.

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

As adjectives, arching and arced are synonyms defined as:

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

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