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Meaning of sumpsimus

sump•si•mus

Pronunciation: (sump'su-mus), [key]
— pl. -mus•es
  1. adherence to or persistence in using a strictly correct term, holding to a precise practice, etc., as a rejection of an erroneous but more common form (opposed to mumpsimus).
  2. a person who is obstinate or zealous about such strict correctness (opposed to mumpsimus).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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