from The Century Dictionary.
- Dishonestly; improperly; unchastely.
Sorry, no etymologies found.
Now the Carline remembered the coming of the said merchant, and how he had cast his love on the Maiden unhonestly and lustfully, and would have lain by her against her will had it not been for the lore of the said Carline, who letted him of his evil will and sent him away shamed.
The Sundering Flood William Morris 1865