From Magadhi Prakrit [Term?], from Sanskrit वहिका (vahikā). Cognate to Assamese বহী (bohi), Oriya ବହି (bôhi), ବଇ (bôi), Gujarati વહી (vahī), Hindi बही (bahī), Punjabi ਵਹੀ (vahī), ਬਹੀ (bahī), Sindhi وَهِي / वही, Marathi वही (vahī).
বই • (bôi) (genitive বইয়ের (bôiẏer), locative বইয়ে (bôiẏe))
বই (bôi)