Proto-Indo-European

*dwóh₁

‘two’

Every word has its own definition in its root. These English words share one: Proto-Indo-European *dwóh₁.

42 English words in this record descend from Proto-Indo-European *dwóh₁, most familiar first.

• two ← twā ← *twai- ← *twai
• doubt ← douten ← douter ← dubitāre ← dubius
• vice ← vitium ← *(d)wi-tyo-
• defeat ← defet ← deffet ← *dwís
• twin ← twinne ← ġetwin ← *twinaz ← *dwino-
• dual ← dualis ← duo ← *duō
• duo
• binary ← binarie ← bīnāriu ← bīnus ← *dwiznos
• vicious ← vitiōsus ← vitium ← *(d)wi-tyo-
• diplomacy ← diplomatie ← diplomatique ← diploma ← δίπλωμα
• dubious ← dubius ← duo ← *duō
• duet ← duetto ← due ← duae ~ duas ← *duō

More words from *dwóh₁

• twain
• bis
• disparate
• duality
• biceps
• twig
• deuce
• twine
• bes
• binocular
• betwixt
• vitiate
• diastole
• tway
• diatessaron
• duetto
• dichotic
• bissextile
• bicipital
• binate
• bissext
• bietapic
• dichogamy
• dilogy
• dissophyte
• dvandva
• totear
• twiglet
• twane
• vitiation

Etymograph / Proto-Indo-European *dwóh₁