Where does “بخير” come from?

بخير (Arabic) comes from Arabic بِ, from Arabic بَاء.

Ancestry of “بخير”, step by step

بخير traces back through two separate lines of ancestry.

via Arabic بِ

StepLanguageWordMeaning
1Arabicبِby; with; in, with
2Arabicبَاء

via Arabic خَيْر

StepLanguageWordMeaning
1Arabicخَيْرgood, well; good, goodness; good, wealth
Every word from Arabic بَاءEvery word from Arabic بِ