Language: Unknown Indian dialect
Source: Stone
Description
Bullova is used by George Cameron Stone to describe a type of axe that is mostly associated with the Khond people of central, eastern and southern India.1
Egerton describes them as pharetri instead.2

A bullova from the George Cameron Stone collection.
Now in the Metropolitan Museum in New York.
Accession number 36.25.1813
A number of these axes were presented to King Edward VII, when Prince of Wales, during his tour of India in 1875-76. See among others Royal Collection Trust, accession number: RCIN 37658
Also see, Royal Armories, Leeds, accession number: XVIC.20
Notes
1. See: Stone, George C.; A Glossary of the Construction, Decoration and Use of Arms and Armor: in All Countries and in All Times. (Reprint) Jack Brussel, New York, 1961. Page 155.
2. See: Lord Egerton of Tatton; Indian and Oriental Arms and Armour. Dover Publications; Revised edition, 2002. Page 78.