Where does “dubbeldekker” come from?

dubbeldekker (Dutch) comes from Dutch dek, from Middle Dutch dec, from Middle Dutch decken, from Old Dutch thecken, from Proto-West Germanic þakkjan, from Proto-Germanic þakjaną, from Proto-Germanic þaką, from Proto-Indo-European (s)teg- — to cover; pole, stick, beam.

dubbeldekker (Dutch): biplane

Definitions

  1. biplane

Ancestry of “dubbeldekker”, step by step

dubbeldekker traces back through two separate lines of ancestry.

via Dutch dek

StepLanguageWordMeaning
1DutchdekA deck; A cover; A surface
2Middle Dutchdecroof, covering
3Middle Dutchdeckento roof, to build/repair a roof; to cover; to...
4Old Dutchtheckento cover; to roof
5Proto-West Germanicþakkjanto cover; to burn
6Proto-Germanicþakjanąto cover; to burn
7Proto-Germanicþakąroof, cover
8Proto-Indo-European(s)teg-to cover; pole, stick, beam

via Dutch dubbel

StepLanguageWordMeaning
1Dutchdubbeldouble, twofold; ambivalent; ambiguous
2Middle Dutchdobbel
3Old Frenchdobledouble
4Latindūplusdouble (twice as much, or as big)
5Proto-Italic*duplosdouble
Every word from Proto-Indo-European (s)teg-
dubbeldekker — Etymology, Origin & Word History | Etymology Explorer