The story
- Proto-Indo-European · derived from*dwóh₁“two”
- Proto-Indo-European · inherited from*dwi-“two-, double-”
- Proto-Germanic · inherited from*twi-“two-, double-”
- Old English · inherited fromtwi-“two, double”
- Middle English · inherited fromtwi-
- English todaytwi-
From Middle English twi-, from Old English twi- (“two, double”), from Proto-Germanic *twi- (“two-, double-”), from Proto-Indo-European *dwi- (“two-, double-”) (compare Proto-Germanic *twiz- (“twice”), from Proto-Indo-European *dwís (“twice”)), from Proto-Indo-European *dwóh₁ (“two”). Compare twin, twice, two, and see more details at two. Further related to the prefixes bi-, di-, and dis-. Cognate with German zwie- (“twice”), Swedish tve- (“twi-, double”), Russian дву- (dvu-), двух- (dvux-) Old Prussian dwi- (“twi-”), Latin bi-, bis (“twice”) (< Old Latin dui-, duis).
Words from the same roots
Proto-Indo-European*dwi- all →
Proto-Indo-European*dwóh₁ all →
Etymology from Wiktionary, CC BY-SA 4.0.