Etymology

fusty

F4U1S1T1Y4

Today it means: Moldy or musty. Full definition →

Middle English fusty
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The story

  1. Middle English · inherited fromfusty
  2. English todayfusty

From Middle English fusty, equivalent to fust + -y. Compare Scots foosty.

Etymology from Wiktionary, CC BY-SA 4.0.