frowst noun & verb. [fraʊst] Also froust. L19.
[Back-form. from FROWSTY.]
A. noun.
1. Extra time in bed in the morning. Also, an armchair. Public School slang. L19.

2. (A laze or idle in) the stuffy or fusty warmth of a crowded or unventilated room. colloq. E20.
■ J. Betjeman Tea and a frowst with crumpets.
■ J. R. Ackerley Ask for the window to be opened? Better not..They preferred their frowst.
b. verb intrans. Stay in a stuffy, warm, or fusty atmosphere, esp. lazily or idly; take pleasure in doing this. L19.
■ K. Amis No use sitting about..or frowsting by the fire with a book.

■ frowster noun E20.

[TahlilGaran] English Dictionary ▲