Where does “dubious” come from?

Dubious comes from Latin dubius, from Latin duhibius, from Latin duo meaning "two," ultimately from Proto-Indo-European dwóh₁.

dubious (English): Arousing doubt; questionable; open to suspicion;...

Definitions

  1. Arousing doubt; questionable; open to suspicion;...

Ancestry of “dubious”, step by step

StepLanguageWordMeaning
1LatindubiusMoving in two directions alternately, vibrating...
2Latin*dubos—
3Indo-European*bʰuH-—

Words derived from “dubious”

Every word from Indo-European *bʰuH- →Every word from Latin *dubos →Every word from Latin dubius →