natatorial

or na·ta·to·ry

[ney-tuh-tawr-ee-uh l, -tohr-, nat-uh- or ney-tuh-tawr-ee, -tohr-, nat-uh-]
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Origin of natatorial

First recorded in 1810–20; natat(ion) + -orial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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Word Origin and History for natatorial
adj.

1816, from natatory (adj.), from Latin natatorius, from natator "swimmer" (see natatorium) + -al.

Online Etymology Dictionary, © 2010 Douglas Harper