ˌeksprōˈmishən noun
( -s )
Etymology: New Latin expromission-, expromissio, from Latin expromissus (past participle of expromittere to promise to pay, from ex- ex- (I) + promittere to promise) + -ion-, -io -ion — more at promise
: an act of binding oneself for another's debt and thereby releasing him from obligation — compare intercession 2