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puerility

[pyoo-uh-ril-i-tee, pyoo-ril-] /ˌpyu əˈrɪl ɪ ti, pyʊˈrɪl-/
noun, plural puerilities.
1.
the state or quality of being a child.
2.
the quality of being puerile; childish foolishness or triviality.
3.
a puerile act, idea, remark, etc.:
an inexcusable puerility.
Origin
late Middle English
1425-1475
1425-75; late Middle English < Latin puerīlitās. See puerile, -ity
Related forms
nonpuerility, noun, plural nonpuerilities.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word Origin and History for puerility
n.

late 15c., from Middle French puérilité (15c.), from Latin puerilitatem (nominative puerilitas) "childishness," from puerilis "boyish, youthful; childish, trivial, silly," from puer "child, boy," from PIE *pau- (1) "few, little," with sense extended to "small, young" (cf. Latin putus "boy," Sanskrit putrah "son, boy," Avestan puthra- "son, child;" see few (adj.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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