from
The Collaborative International Dictionary of English v.0.48
Pithy \Pith"y\, a. [Compar. {Pithier}; superl. {Pithiest}.]
1. Consisting wholly, or in part, of pith; abounding in pith;
as, a pithy stem; a pithy fruit.
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2. Having nervous energy; forceful; cogent.
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This pithy speech prevailed, and all agreed.
--Dryden.
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In all these Goodman Fact was very short, but pithy.
--Addison.
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{Pithy gall} (Zool.), a large, rough, furrowed, oblong gall,
formed on blackberry canes by a small gallfly
({Diastrophus nebulosus}).
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