Gauner

Etymology
From thieves’ cant, attested ca. 1500 alongside the verb. Further usually derived from, from , because Greeks were said to be skilful cardsharps (compare 🇨🇬 in this sense). The anlaut is due to hypercorrection based on the widespread Central German pronunciation of initial as. The form was established by.

Noun

 * 1)  petty thief, crook, racketeer
 * 2)  sly, cunning person
 * 1)  sly, cunning person