prepense

adjective

pre·​pense pri-ˈpen(t)s 

: planned beforehand : premeditated

—usually used postpositively

malice prepense

prepensely adverb

Word History

Etymology

by shortening & alteration from earlier purpensed, from Middle English, past participle of purpensen to deliberate, premeditate, from Anglo-French purpenser, from pur- thoroughly + penser to think — more at purchase entry 1, pensive

First Known Use

1647, in the meaning defined above