sumpsimus [suhmp-suh-muh s]
noun, plural sumpsimuses for 2.
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).
Origin: First recorded in 1540-50; See origin at mumpsimus
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