Where does “slaapmuts” come from?

slaapmuts (Dutch) comes from Dutch slapen, from Middle Dutch slâpen, from Old Dutch slāpan, from Proto-West Germanic slāpan, from Proto-Germanic slēpaną, from Proto-Indo-European slab- — to be weak, be languid; be weak, limp, languid.

slaapmuts (Dutch): nightcap

Definitions

  1. nightcap

Ancestry of “slaapmuts”, step by step

slaapmuts traces back through two separate lines of ancestry.

via Dutch slapen

StepLanguageWordMeaning
1Dutchslapento sleep
2Middle Dutchslâpento sleep
3Old Dutchslāpanto sleep
4Proto-West Germanicslāpanto sleep
5Proto-Germanicslēpanąto sleep
6Proto-Indo-Europeanslab-to be weak, be languid; be weak, limp, languid

via Dutch muts

StepLanguageWordMeaning
1Dutchmutstuque (knitted winter cap), a type of brimless hat; a similar soft (nearly) brimless hat
2Middle Dutchmutsecap, nightcap; mutch
3Latinmodiusmodius, a unit of dry measure of about a peck or...
4Latinmodusmeasure
5Proto-Indo-Europeanmēd-to measure
6Proto-Indo-Europeanmed-to measure; to give advice; healing
Every word from Proto-Indo-European slab-