köken: From Middle High German zwölf, zwolf, zwelf, zwelif, from Old High German zwelif, from an original *twelif, from Proto-Germanic *twalif. Compare Hunsrik zwellef, Dutch twaalf, English twelve, Norwegian and Danish tolv.
köken: From Middle Dutch twalef, twaelf (also twelef, tweelf), from Old Dutch *twalif, *twelif, from Proto-Germanic *twalif. The reason for the lack of umlaut in the form with a is unknown. It may be that the position between /w/ and (velarized) /l/ hindered umlaut in some dialects. Cognate with German zwölf, West Frisian tolve, English twelve, Danish tolv, Norwegian tolv.
köken: From Old Swedish tolf, from Old Norse tolf, Runic Swedish ᛐᚢᛆᛚᚠ (tualf), from Proto-Germanic *twalif. Compare Norwegian and Danish tolv, Faroese tólv, Icelandic tólf.
köken: Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-Iranian *dwáH Sanskrit द्व (dva) Proto-Indo-European *déḱm̥ Proto-Indo-Iranian *dáća Sanskrit दश (daśa) Sanskrit द्वादश (dvādaśa) Sauraseni Prakrit 𑀩𑀸𑀭𑀲 (bārasa) Hindi बारह Inherited from Old Hindi बारह (bāraha), from Apabhramsa बारह (bāraha), from Sauraseni Prakrit बारस (bārasa), from Ashokan Prakrit 𑀤𑁆𑀩𑀸𑀤𑀲 (dbādasa), from Sanskrit द्वादश…
Etymology tree Proto-Indo-European *dwóh₁ Proto-Italic *duō Latin duo Proto-Indo-European *déḱm̥ Proto-Italic *dekəm Latin decem Latin duodecim From duo (“two”) + decem (“ten”).