Perfect example! 
 
No doubt, old Hindus had some reasons to use different names for these apparently identical weapons, but we do not know whether  this was due to linguistics, location,  personal moniker,  some feature that we cannot identify or anything else. 
 If in the future  we manage to  find out  the reason, we may have to re-assess our current approach.  Till then, katar is good enough for me, and the obsession with blindly subdividing 3 objects into five distinct groups may well be abandoned. Let's stop the madness.
		 
		
		
		
		
		
		
		
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