Like the beaver, it is furnished with an undercoat of soft downy fur.
Undercote, or undercoat; fester under the skin (coat is "cutis," skin).
This will act as a primer or undercoat for the succeeding coats of paint.
In the English method, where necessary, a priming or undercoat is employed.
Get some sort of stuff, made of sheep's clothing, I don't know what you call 'n, for ...