بیاہ (Urdu) comes from Sauraseni Prakrit 𑀯𑀺𑀯𑀸𑀳, from Sanskrit विवाह, from Sanskrit वि, from Proto-Indo-Aryan wí, from Proto-Indo-Iranian wí, from Proto-Indo-European wi — apart, asunder; away from, against.
بیاہ (Urdu): wedding, marriage