“وَ” (wa)a joining word meaning “and.” It connects this word to what came before.Corpus grammarCONJ — prefixed conjunction wa (and).
“يَمْنَعُ” (yamnaʿu)means “And they deny” in this verse. It is a verb. an action or state word. Here it is imperfect verb, third person — masculine — plural.Corpus grammarV — third person masculine plural imperfect verb.
“ونَ” (wna)an attached pronoun meaning “they” or “them.”Corpus grammarPRON — third person masculine plural subject pronoun.