Mountebank

1. v. i. To play the mountebank.
2. n. One who mounts a bench or stage in the market or other public place, boasts of his skill in curing diseases, and vends medicines which he pretends are infalliable remedies; a quack doctor.
3. n. Any boastful or false pretender; a charlatan; a quack.
4. v. t. To cheat by boasting and false pretenses; to gull.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.