Pat:

Fit; convenient; exactly suitable either as to time or place. This is a low word, and should not be used but in burlesque writings.

The never saw two things so pat,
In all respects, as to this and that.

-Hudibras, p.ii

Mugient:

Bellowing.

Gossip:

(1) One who answers for the child in baptism.

(2) A tippling companion.

(3) One who runs about tattling like a woman at a lying-in.

Proficuous:

Advantageous; useful.

It is very proficuous, to take a good large dose.

-Harvey

Cautelous:

(1) Cautious; wary; provident.

(2) Wily; cunning, treacherous.

Afterclap:

Unexpected events happening after an affair is supposed to be at an end.

Cough:

A convulsion of the lungs, vellicated by some sharp serosity. It is pronounced coff.