“انطَلِقُ” (anṭaliqu)means “Proceed” in this verse. It is a verb. an action or state word. Here it is verb pattern seven, second person — masculine — plural.Corpus grammarV — second person masculine plural imperative verb.
“وا” (wā)an attached pronoun meaning “you all.” It shows who is being addressed.Corpus grammarPRON — second person masculine plural subject pronoun.