Civil Law . any prohibitory act or decree of a court or an administrative officer.

Roman Catholic Church . a punishment by which the faithful, remaining in communion with the church, are forbidden certain sacraments and prohibited from participation in certain sacred acts.

Roman Law . a general or special order of the Roman praetor forbidding or commanding an act, esp. in cases involving disputed possession.

to forbid; prohibit.

Ecclesiastical . to cut off authoritatively from certain ecclesiastical functions and privileges.

to impede by steady bombardment

Constant air attacks interdicted the enemy's advance.

verb

ban , debar , disallow , enjoin , inhibit , outlaw , prohibit , proscribe , taboo , forbid , halt , prevent , stop , veto

noun

interdiction , penalty