A necessary. A leathern conveniency, a coach.

–From the 1811 Dictionary of the Vulgar Tongue.

Leathern (from the free dictionary) = Made of leather; consisting of leather; as, a leathern purse.

Free Dictionary

A blockhead; a dolt.

1811 Vulgar Tongue

A dull, heavy booby.

*Similar to addle pate.

A contraction of yesterday.

–From the 1811 Dictionary of the Vulgar Tongue.

Rich, in good circumstances. To warm, or give a man a warming; to beat him. See chafed.

–From the 1811 Dictionary of the Vulgar Tongue.

So you want to be warm, but not be warmed…