Monday's word: pteridology

PRONUNCIATION:(ter-i-DOL-uh-jee)
MEANING: noun: The study of ferns.

ETYMOLOGY: From Greek pterido (fern) + -logy (study). Ultimately from the Indo-European root pet- (to rush or fly), which also gave us feather, petition, compete, perpetual, propitious, pinnate, and lepidopterology. Earliest documented use: 1855.
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PETERIDOLOGY: noun The study of Peter (singular).