borrowed from Latin pilleus, pīleus, pilleum, pīleum "felt cap" — more at pileus
1874, in the meaning defined above
pile start
pileum
pileup
“Pileum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pileum. Accessed 28 Nov. 2024.
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