Usage 1: This term is not so much scholarly as simply widely overlooked. It refers to a younger stage than immature or even juvenile. It specifically refers to very young children.
Suggested usage: This word is an emphatic substitute for "childish" or immature': "don't be so puerile, Buffy! It can also be used simply to refer to childhood: "In his puerile world, Ralphy was king."
Etymology: Latin puer "boy" and puera "girl". Originally from PIE *pou- "little, few" which gave both English few and paucity borrowed from Latin paucus "little, few". Paucus also underlies Spanish poco, and with the diminutive suffix, l, gives the Latin paulus "small, Paul".
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