The word vagina means…
The word ‘vagina’ comes from the late 17th century latin for sword-sheath.
The plural of vagina is either vaginae.
Bonus Fact: Clitoris – is borrowed directly from kleitoris, a Greek word for both a door-tender and the female organ. This is thought to relate to kleis, a key, by which one gains entrance through a door.
https://www.dartmouth.edu/~humananatomy/resources/etymology/Pelvis.htm
https://books.google.co.uk/books?id=anecAQAAQBAJ&pg=PA1962&redir_esc=y#v=onepage&q&f=false
