Idolishche Poganoye (Russian: Идолище Поганое) is a mythological monstrosity from Russian bylinas (epic tales) which personified pagan forces invading the Russian lands.  The name literally means "pagan idol", with a Russian augmentative suffix "-ishche".
The major epic sources that involve Idolische are various variants of the bylina "Ilya Muromets and Idolishche Poganoye" ("Илья Муромец и Идолище Поганое"), where Idolishche is also characterized as "Tatarin", in reference to the Tatar-Mongol yoke.
- Ushakov's Explanatory Dictionary of Russian Language
- This article incorporates material from the public domain 1906 Brockhaus and Efron Encyclopedic Dictionary. Article: Поганое Идолище (Russian)