बहना (Hindi) comes from Sauraseni Prakrit 𑀯𑀳𑀤𑀺, from Sanskrit वहति, from Proto-Indo-Aryan wáźʰati, from Proto-Indo-Iranian wáȷ́ʰati, from Proto-Indo-European wéǵʰeti, from Proto-Indo-European weǵʰ- — to bring; to transport.
बहना (Hindi): to flow; to drift; to float