Where does “Dutch nightingale” come from?

Dutch nightingale (English) comes from English nightingale, from Middle English nyghtyngale, from Middle English nyghtgale, from Old English nihtegale, from Proto-West Germanic nahtigalā, from Proto-West Germanic naht, from Proto-Germanic nahts, from Proto-Indo-European nókʷts — bare, naked.

Dutch nightingale (English): A frog

Definitions

  1. A frog

Ancestry of “Dutch nightingale”, step by step

Dutch nightingale traces back through two separate lines of ancestry.

via English nightingale

StepLanguageWordMeaning
1EnglishnightingaleA European songbird, "Luscinia megarhynchos", of...
2Middle Englishnyghtyngalenightingale
3Middle Englishnyghtgalenightingale
4Old Englishnihtegalenightingale
5Proto-West Germanicnahtigalānightingale
6Proto-West Germanicnahtnight
7Proto-Germanicnahtsnight
8Proto-Indo-Europeannókʷtsnight
9Proto-Indo-Europeannegʷ-bare, naked

via English Dutch

StepLanguageWordMeaning
1EnglishDutchOf or pertaining to the Netherlands, the Dutch...
2Middle EnglishDuchGerman, Dutch; German, Low German, Dutch
3Middle Dutchduutsch
4Old Dutchthiudiscof the people, vernacular
5Proto-West Germanicþiudiskof the people, popular, vernacular
6Proto-Germanicþiudiskazof the people, popular; of the tribe
7Proto-Germanicþeudōpeople, tribe
8Proto-Indo-Europeantewtéh₂people, tribe
9Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong
Every word from Proto-Indo-European negʷ-Every word from Proto-Indo-European nókʷtsEvery word from Proto-Germanic nahts