Where does “azijn” come from?

azijn (Dutch) comes from Middle Dutch aisine, from Old French aisin, from Latin acetulum, from Latin acētum, from French -ate, from Latin -ātus, from Proto-Italic -ātos, from Proto-Indo-European -éh₂tos — Forms adjectives from nouns, indicating the possession of a thing or a quality.

azijn (Dutch): vinegar