Mugger \Mug"ger\, n. Also Muggar \Mug"gar\, Muggur \Mug"gur\ [Hind. magar, fr. Skr. makara sea monster.]

The common crocodile (Crocodilus palustris) of India, the East Indies, etc. It becomes twelve feet or more long.

Source: Webster's Revised Unabridged Dictionary (1913)