The Proto-Indo-European word *dwéh₃(u)
Word *dwéh₃(u)
Meaning two
See also Proto-Indo-European: *dwei- ‘fear’
Proto-Indo-European: *dw(e)i-plos ‘double, twofold’
Proto-Indo-European: *dwi- ‘bi-’
Proto-Indo-European: *dwis ‘twice’
Proto-Indo-European: *dwiyos~dwitos ‘second’
Proto-Indo-European: *dwōdek̂m̥(t) ‘twelve’
Proto-Indo-European: *dwoyos ‘twofold, double(d)’
Proto-Indo-European: *dis- ‘apart, asunder’
Synonyms *dwoi-

Comments
Mallory J.P. and Adams D. (2006)

Other words that might be of interest
*hₓok̂tṓ(u) ‘eight’, *trei- ‘three’, *h₁oinos ‘one’, *kʷetwóres (m), kʷetwesóres (f), kʷetwōr (n) ‘four’, *(h₁)néwn̥ ‘nine’, *pénkʷe ‘five’, *sem- ‘one’, *septḿ̥ ‘seven’, *septm̥-k̂ómt-h₂ ‘seventy’, *kswek̂s ‘six’, *tréies (m), trisóres (f), treih₂ (n) tri- [prefix] ‘three’, *h₁newh₁m̥(h₁néwh₁n̥?) ‘nine’, *tóti ‘so much, many’, *tréyes ‘three’, *trī-k̂omt(hₐ) ‘thirty’, *kswek̂s-k̂omt(hₐ) ‘sixty’, *kʷetwóres ‘four’, *per(hₓ)- ‘first’, *h₁newh₁m̥m/n̥-mos ‘ninth’, *hₓok̂towós ‘eighth’, *kswek̂sos ‘sixth’, *kʷturyós~kʷetwortos ‘fourth’, *pn̥kʷtós ‘fifth’, *septm̥-mós ‘seventh’, *triyós ‘third’