The word wine comes from the Italian vino (wine), from the Latin vinum (wine) that derives from the Greek oinos (οίνος). The root vin- has been adopted by many European languages, such as German (der Wein), French (vin) etc.
No. "Vinum" does not come from Greek. Both are from a common root.
Before you make another such post, it would behove you to examine the clear and accurate etymologies available at Webster.com:
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Main Entry:
1wine
Pronunciation:
\ˈwīn\
Function:
noun
Usage:
often attributive
Etymology:
Middle English win, from Old English wīn; akin to Old High German wīn wine; both ultimately from Latin vinum wine, perhaps of non-IE origin; akin to the source of Greek oinos win
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