ACTIONARE by Law Professor Latin: (From actio, an action.) In old records. To bring an action; to prosecute, or sue. Thorn’s Chron.; Whis haw. Related Posts:ACTIO NONACTIO PERSONALISACTIO NON ACCREVIT INFRA, SEX ANNOSCROSS ACTIONACTIO NON ACCREVIT INFRA SEX ANNOSPERSONALIS ACTIO