instigatrix

From Latin īnstīgātrīx.

instigatrix (plural instigatrices)

1. female equivalent of instigator
   • 1811, Biographie Moderne, volume I, page 24:

     Better perhaps would it have been for the accused had she had no other advocates than her innocence and her firm imposing demeanour ; but her death was resolved on, and two days after she was condemned as “ the instigatrix of the crimes committed by the last tyrant of France ; as having herself maintained a correspondence with foreign powers, particularly with her brother the king of Bohemia and Hungary, with those emigrants who were formerly French princes, and with perfidious generals […]

From īnstīgō (“to incite, instigate”) +‎ -trīx.

• (Classical) IPA^(key): /in.stiːˈɡaː.triːks/, [ĩːs̠t̪iːˈɡäːt̪riːks̠]
• (modern Italianate Ecclesiastical) IPA^(key): /in.stiˈɡa.triks/, [inst̪iˈɡäːt̪riks]

īnstīgātrīx f (genitive īnstīgātrīcis); third declension

1. female equivalent of īnstīgātor (“stimulator, instigator”)

Third-declension noun.

• “instigatrix”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “instigatrix”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers