Penis

File:Labelled flaccid penis.jpg|thumb|A human penis with labelled parts: shaft, foreskin, meatus,

From Latin pÄ“nis ("tail, penis"), from Proto-Indo-European *pes-. Displaced native English pintle.

Full definition of penis

(plural penises or penes)

(anatomy) The male sexual organ for copulation and urination; the tubular portion of the male genitalia (excluding the scrotum).

Robin Williams:See, the problem is that God gives men a brain and a penis, and only enough blood to run one at a time.
1994, Lisa Kemler, Newsweek, 1994-01-24, page 19:A life is more valuable than a penis.
1998, Collecting Mark Twain: A History and Three New Paths, Kevin Mac Donnell, Firsts Magazine, Inc.By early November, the sheets of HUCK FINN were being forwarded for binding, and within a week or two it was discovered that the illustration at page 283 had been altered in the master plate to make it appear as if Uncle Silas was exposing his penis. Twain would be amused to know that this may be the first time the word "penis" has ever been used to describe the alteration to this plate; the euphemisms and delicate phrasings employed by previous bibliographers to avoid stating the obvious are impressive.

The hyperforeign Latinate penii is occasionally used as the plural in modern English.