treasonously

English edit

treasonously (comparative more treasonously, superlative most treasonously)

In a treasonous manner, or to a treasonous degree
- 2009 January 23, Eve M. Kahn, “Conversation-Piece Buys, Maybe. Intriguing Histories, Definitely.”, in New York Times‎^[1]:
  […] British potters in Liverpool treasonously inscribed pro-American slogans on 1810s pitchers for the lucrative export trade ($2,000 to $6,000 at William R. and Teresa F. Kurau).