Where does “tvilsom” come from?

tvilsom (Norwegian Bokmål) comes from Norwegian Bokmål søm, from Old Norse saumr, from Old Norse sýja, from Proto-Germanic siwjaną, from Proto-Indo-European sīw- — to sew.

tvilsom (Norwegian Bokmål): doubtful, dubious, questionable

Definitions

  1. doubtful, dubious, questionable

Ancestry of “tvilsom”, step by step

tvilsom traces back through two separate lines of ancestry.

via Norwegian Bokmål søm

StepLanguageWordMeaning
1Norwegian Bokmålsøma seam
2Old Norsesaumrseam, nails
3Old Norsesýjato sew
4Proto-Germanicsiwjanąto sew
5Proto-Indo-Europeansīw-to sew

via Norwegian Bokmål tvil

StepLanguageWordMeaning
1Norwegian Bokmåltvila doubt; imperative of tvile
2Low Germantwivel—

Words derived from “tvilsom”

Every word from Proto-Indo-European sīw- →Every word from Proto-Germanic siwjaną →Every word from Old Norse sýja →