Proto-Baltic: *dwō, *dwai, *dwī f., *dwej-, *dwi-,
Meaning: two
Lithuanian: dù, f. dvì 'zwei'; dvejì 'je zwei', dvẽja 'zweierlei', dvẽjeta-s 'Zweiheit'; dvi-
Lettish: divi, dui '2'
Old Prussian: dwigubbus 'doppelt', dwigubbū 'zweifelt'; dwai '2'