VernikovmRussian From Russian верник (vernik), meaning "believer", usually in the context of religion due to the term вера (vera) "faith, belief, trust" which is often associated with religion.
YezhovmRussian Derived from Russian word "ёж (yozh)" meaning hedgehog. Yezhov was the last name of Nikolay Yezhov, the leader of the Soviet NKVD from 1936-38 who is known for Yezhovshchina.
YmykovmYakut From Yakut ымыы (ymyy), meaning "crossbill (bird)".
YurovskiymRussian, Polish (Russified) Alternate transcription of Yurovsky. This was the last name of Yakov Yurovskiy, a notable Bolshevik. He led the execution of the Romanovs.