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Webster 1913 Edition

Adj.

Fusty; musty.

[Obs.]

Johnson.

, a Fusty, which see.

foisty ‎(comparative foistier, superlative foistiest)

mouldy, musty, fusty
- 1669, John Worlidge, Systema agriculturae: The Mystery of Husbandry Discovered:
  Thrash not Wheat to keep untill March, lest it prove foisty.
- 2000, Samuel Bamford, Martin Hewitt, Robert Poole, The Diaries of Samuel Bamford, page 2:
  Papers 150 years old, mildewed, rotten and stinking like muck; and mouldy foisty old books dating from 1638.