Where does “कब” come from?
कब (Hindi) comes from Hindi कृत्रिम बुद्धि, from Hindi बुद्धि, from Sanskrit बुद्धि, from Proto-Indo-Aryan bʰúddʰiṣ, from Proto-Indo-Iranian bʰúdᶻdʰiš, from Proto-Indo-European bʰúdʰtis, from Proto-Indo-European bʰewdʰ- — to be awake, be aware.
कब (Hindi): when
Ancestry of “कब”, step by step