女房詞

Etymology
Compound of

Both spellings, 女房詞 and, are in use. The 女房詞 spelling appears to be more common, and is listed as the main form in dictionaries.

Noun

 * 1) a cant or secret language of ladies-in-waiting in the imperial court, arising during the Muromachi period and later spreading to the general population
 * 2) a word originally belonging to this cant