Etymology

dubious

D2U1B3I1O1U1S1

Today it means: Arousing doubt; questionable; open to suspicion. Full definition →

Latin dubius
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The story

  1. Latin · derived fromduo
  2. Latin · borrowed fromdubius
  3. English todaydubious

From Latin dubius; like doubt, from Latin duo (cognate to English two), implying “two alternatives” (yes or no, true or false, etc.).

Words from the same roots

Latinduo all →

duodeuceduo-duology

Etymology from Wiktionary, CC BY-SA 4.0.