Mohawk \Mo"hawk\, n.

1. (Ethnol.) One of a tribe of Indians who formed part of the Five Nations. They formerly inhabited the valley of the Mohawk River.

2. One of certain ruffians who infested the streets of London in the time of Addison, and took the name from the Mohawk Indians. [Slang] --Spectator. Macaulay.

Source: Webster's Revised Unabridged Dictionary (1913)