Source: Secondary reference material
Firaṅgī (फिरंगी) literally means "foreigner", based on the old word franc. It is used to describe European swords that are mounted in Indian hilts, usually Hindu basket hilts. Such swords were popular in north India and the Deccan in the 17th century and to some extent in the 18th century. The mounted blades could be either straightsword blades or curved sabers.
A firangi sword with European saber blade.
Metropolitan Museum accession number 36.25.1316.
From Old French franc. Doublet of franc.
Urdu firangī (فرنگی)
Persian farangi (فرنگی)
Arabic ʾifranjiyy (إفرنجي)
Philip S. Rawson; The Indian Sword. London, Herbert Jenkins. 1968. Page 43.