One of the mysteries of the English language finally explained.
Of or relating to the butterfly subfamily Pierinae, which was originally a subfamily of Papilionidae comprising all the pierids, and is now a subfamily of Pieridae comprising the whites and (in some schemes) the orange tips.
A butterfly of the subfamily Pierinae.
Late 19th century. From scientific Latin Pierinae, subfamily name from Pieris, genus name + -inae.
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