Where does “dual” come from?

dual (Irish) comes from Old Irish dúal, from Proto-Celtic doklos, from Proto-Indo-European doḱlos.

dual (Irish): lock, tress; wisp, tuft; ply, strand

Definitions

  1. lock, tress; wisp, tuft; ply, strand

Ancestry of “dual”, step by step

StepLanguageWordMeaning
1Old Irishdúalsuitable; strand or lock of hair; that which...
2Proto-Celticdokloslock of hair
3Proto-Indo-Europeandoḱlos—

Words derived from “dual”

Every word from Proto-Indo-European doḱlos →Every word from Proto-Celtic doklos →Every word from Old Irish dúal →