Green’s Dictionary of Slang

evil n.2

[sl.’s usu. negative image of marriage]

1. one’s wife, ‘an admirable synonyme’ (Egan’s Grose 1823).

[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[US]Matsell Vocabulum.

2. marriage.

[US]Matsell Vocabulum.