What does "nittel nacht" mean (english translation?)

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Seriously, what does it mean? I think that nacht = night, but that's the extent of my knowledge here.— Preceding unsigned comment added by Namangwari (talkcontribs)

There are those that says it comes from Dies natalis. Debresser (talk) 17:14, 24 December 2016 (UTC)Reply
According to https://verterbukh-org, ניטל means "Christmas" in yiddish ShaiGoldman18 (talk) 15:14, 24 December 2023 (UTC)Reply
Looks like wikitionary has the etymology on this: https://en.wiktionary.org/wiki/%D7%A0%D7%99%D7%98%D7%9C ShaiGoldman18 (talk) 15:50, 24 December 2023 (UTC)Reply