v. ? dial. [Of unknown origin; cf. Harrow school slang froust sb., ‘extra sleep allowed in the morning of Sundays and whole holidays’ (Barrère and Leland).] intr. To rest lazily, lounge.

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1884.  Standard, 5 May, 4/4. A generation that frousts over the fire.

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1889.  B. Whitby, Awakening M. Fenwick, II. 182. I hate … frowsting over a fire.

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