different between leavened vs yeasty

English

leavened

leavened

From yeast +? -y.

yeasty (comparative yeastier, superlative yeastiest)

Having or resembling yeast.
Foamy and frothy.
- 1819, Lord Byron, Don Juan, III.58:
  The Ocean when its yeasty war is waging / Is awful to the vessel near the rock [...].
Emotionally bubbling over (as with exuberance)
Trivial.
- 1602 : William Shakespeare, Hamlet, act V scene 2
  Thus has he, and many more of the same breed that I
  know the drossy age dotes on, only got the tune of the
  time and, out of an habit of encounter, a kind of
  yeasty collection, which carries them through and
  through the most profane and winnowed opinions

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