-st adjective
Etymology: from past participle of possess
1. obsolete : held as a possession
2.
a. : influenced or controlled by something (as an evil spirit or a passion)
these possessed fools
often : mad , crazed
b. : urgently desirous to do or have something
3. : self-possessed , cool , calm
4. : used in a construction to indicate what is possessed
dog in the phrase “Bill's dog” is a possessed noun
— usually used of a form different from that used in other constructions (as in Hebrew and several Amerindian languages)
• pos·sessed·ly -sə̇dlē, -stlē, -li adverb
• pos·sessed·ness -sə̇dnə̇s, -stnə̇s noun -es