penetralia

plural noun
pen·​e·​tra·​lia | \ˌpe-nə-ˈtrā-lē-ə \

Definition of penetralia 

: the innermost or most private parts

First Known Use of penetralia

1668, in the meaning defined above

History and Etymology for penetralia

Latin, neuter plural of penetralis inner, from penetrare to penetrate

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The first known use of penetralia was in 1668

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