Farmer’s Slang & Its Analogues. 1890–1909, rev. 2022.
Treason
subs. (venery).—Adultery: also FLESHLY TREASON.
1
1607. DEKKER, Westward Ho! v. 3. Those [diamonds] are they your husband … would have given to a niece of mine … to have committed FLESHLY TREASON with her.
