Where does “tussenklep” come from?

tussenklep (Dutch) comes from Dutch tussen, from Middle Dutch twisschen, from Old Dutch intwiskan, from Proto-Germanic twiskaz, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.

tussenklep (Dutch): check valve

Definitions

  1. check valve

Ancestry of “tussenklep”, step by step

tussenklep traces back through two separate lines of ancestry.

via Dutch tussen

StepLanguageWordMeaning
1Dutchtussenbetween; among, amidst
2Middle Dutchtwisschen
3Old Dutchintwiskan
4Proto-Germanictwiskaztwofold, double
5Proto-Indo-Europeandwístwice, doubly; in two
6Proto-Indo-Europeandwóh₁two

via Dutch klep

StepLanguageWordMeaning
1Dutchklephatch; visor; valve
2Middle Dutchclepperattle used by lepers
Every word from Proto-Indo-European dwóh₁