Where does “nightlong” come from?

nightlong (English) comes from Middle English nihtlong, from Old English nihtlang, from Old English lang, from Proto-West Germanic lang, from Proto-Germanic langaz, from Proto-Indo-European dlongʰos — long.

nightlong (English): Lasting a night (i.e. the duration of one night); lasting all night

Definitions

  1. Lasting a night (i.e. the duration of one night); lasting all night

Ancestry of “nightlong”, step by step

StepLanguageWordMeaning
1Middle Englishnihtlong—
2Old Englishnihtlanglasting through the night, night-long, a night in...
3Old Englishlanglong; lasting; old, ancient; advanced
4Proto-West Germaniclanglong
5Proto-Germaniclangazlong
6Proto-Indo-Europeandlongʰoslong
Every word from Proto-Indo-European dlongʰos →Every word from Proto-Germanic langaz →Every word from Proto-West Germanic lang →