Etymology
1. Etymology tree
2. Proto-Italic *du(i)βwos
3. Latin *dubosdenom.
4. Latin dubō
5. Proto-Indo-European *-tós
6. Proto-Italic *-tos
7. Latin -tus
8. Proto-Indo-European *-h₂
9. Proto-Indo-European *-éh₂
10. Proto-Indo-European *-yéti
11. Proto-Indo-European *-eh₂yéti
12. Proto-Indo-European *-h₂tiinflu.
13. Proto-Italic *-ājō
14. Proto-Italic *-āō
15. Latin -ō
16. Latin -tō
17. Latin -itō
18. Latin dubitō
19. Old French doterbor.
20. Middle English douten
21. ▲
22. Old French doter
23. Old French doutebor.
24. Middle English doute
25. ▲
26. English dubiousinflu.
27. ▲
28. Latin dubitōinflu.
29. English doubt
30. The verb is derived from Middle English douten (“to doubt, fear, worry”) [and other forms], from Old French douter, doter, duter (compare Middle French doubter), from Latin dubitāre (“to be uncertain, doubt; to hesitate, waver in coming to an opinion; to consider, ponder”); the further etymology is uncertain, but one theory is that dubitō may be derived from dubius (“fluctuating, wavering; doubtful, dubious, uncertain”), from duhibius (“held as two”), from duo (“two”) (ultimately from Proto-Indo-European *dwóh₁ (“two”)) + habeō (“to have, hold”) (possibly ultimately from Proto-Indo-European *gʰeh₁bʰ- (“to grab, take”)). Spelling reformers of the early modern period added the letter b to reflect the Latin root dubitō, but it has never been pronounced in English.
31. The noun is derived from Middle English dout, doute (“uncertainty, hesitation; questionable point; anxiety, fear, reverence”) [and other forms],
32. from Old French doute, dote, dute (“uncertain feeling, doubt”), from doter, douter, duter (“to doubt, fear”) (compare Middle French doubter; modern French douter (“to doubt, suspect”)); see further etymology above.
33. The ESL "question" sense is a semantic loan from Romance cognates: Portuguese dúvida, Spanish duda, Catalan dubte, French doute, Italian dubbio and others, which can all mean "question".
34. Displaced Old English twēo (“doubt”) and twēoġan (“to doubt”). See: Latin Nouns '
dubitō', Middle English Nouns '
dout', Portuguese Nouns '
dúvida', Spanish Nouns '
duda', Catalan Nouns '
dubte', French Nouns '
doute', Italian Nouns '
dubbio'.
Verbs referencing "doubt"
Irish Nouns
dabht.