köken: Inherited from Old Ruthenian дво́йчи (dvójči), from Old East Slavic дъвоичи (dŭvoiči), from Proto-Slavic *dъvojьťi. Cognate with Belarusian дво́йчы (dvójčy), Old Polish dwójcy. By surface analysis, дві (dvi) + -чі (-či).
köken: From Old Latin duis (mentioned by Cicero), from Proto-Italic *dwis, from Proto-Indo-European *dwís (“in two, twice, doubly”), adverb derived from *dwóh₁ (“two”); compare Ancient Greek δίς (dís), Sanskrit द्विस् (dvís). Doublet of dis-.
aile: bis ad eundem, bis in anno, bis anno, bis in die, bis die, bis in mense, bis mense, bis minus, bis tanto, bis tantum
Me torret face mutua / Thurini Calais filius Ornyti, / pro quo bis patiar mori, / si parcent puero fata superstiti.