Where does “बीस” come from?
बीस (Awadhi) comes from Ashokan Prakrit 𑀯𑀻𑀲𑀢𑀺, from Sanskrit विंशति, from Proto-Indo-Aryan HwiHśatí, from Proto-Indo-Iranian HwiHćati, from Proto-Indo-European h₁wih₁ḱm̥t, from Proto-Indo-European dwi(h₁)dḱm̥ti — two tens; two decades; twenty; two-ten.
Ancestry of “बीस”, step by step