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penis

/ˈpiː.nɪs/ noun

In Latin: penis, veretrum First recorded: late 17th century Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about penis at Wordnik → Where our words come from →

  1. The male sex organ (`member' is a euphemism).

Origin

Learned borrowing from Latin pēnis, from Proto-Italic *peznis, from Proto-Indo-European *pes-ni-s, from *pes- (“penis”). First attested in the late 17th century. Doublet of pencil. Displaced native English pintle, tarse, pillicock.

From Wiktionary, via Kaikki.org (CC BY-SA)