Etymology of the English word nightshirt
the English word nightshirt
derived from the English word night
derived from the Proto-Indo-European root *nokʷt-
derived from the Proto-Indo-European root *nekʷ-t-
derived from the Proto-Germanic root *nakht-
derived from the English word shirt
derived from the Proto-Germanic root *skurtijon
derived from the Proto-Indo-European root *sker-