Where does “اثنين” come from?

اثنين (Malay) comes from Arabic الْاِثْنَيْن.

Ancestry of “اثنين”, step by step

StepLanguageWordMeaning
1Arabicالْاِثْنَيْن
Every word from Arabic الْاِثْنَيْن
اثنين — Etymology, Origin & Word History | Etymology Explorer