“وَ” (wa)a joining word meaning “and.” It connects this word to what came before.Corpus grammarCONJ — prefixed conjunction wa (and).
“تَصْلِيَةُ” (taṣliyahu)means “And burning” in this verse. It is a noun. a naming word. Here it is verb pattern two, feminine, nominative.Corpus grammarN — nominative noun.