ETYM Hind. magar, from Skr. makara sea monster.
1. A thief who takes property by threatening (or performing) violence on the person who is robbed; SYN. robber.
2. One who attacks with intent to rob.
3. One that grimaces especially before an audience.

Muggar, muggur (Indian) crocodile.
A usually harmless freshwater crocodile (Crocodylus palustris) of the Indian subcontinent with a broad heavy snout