1. In a knavish manner.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• ravishly,
• jnavishly,
• mnavishly,
• lnavishly,
• onavishly,
• inavishly,
• kbavishly,
• kmavishly,
• kjavishly,
• khavishly,
• knzvishly,
• knsvishly,
• knwvishly,
• knqvishly,
• knacishly,
• knabishly,
• knawishly,
• knavashly,
• theivishly,
• snakishly

• knavish.

The adjective form of the word "knavishly" is "knavish".