Pronunciation: ' je-k ə l- ə n- ' h ī d also ' j ē - or ' j ā -
Function: noun
Etymology: Dr. Jekyll & Mr. Hyde, representing the two-sided personality of the protagonist in The Strange Case of Dr. Jekyll and Mr. Hyde (1886) by R. L. Stevenson
Date: circa 1922
: one having a two-sided personality one side of which is good and the other evil