What is "miryachit"

Miryachit \Mir"ya*chit`\, n. [Written also myriachit.] [Yakoot merj["a]k epileptic, fr. imerek jerk, rage.] (Med.) A nervous disease in which the patient involuntarily imitates the words or action of another.

"nervous disorder peculiar to Siberia, in which the patient mimics everything said or done by another," from Russian, literally "to be epileptic."

n. (cx obsolete English) A nervous disorder said to have been encountered in Siberia, characterized by a jumping tic and the involuntary imitation of the words and actions of other people.