sworn
sworn1 /swɔːn $ swɔːrn/ 
the past participle of swear
sworn2 adjective1. sworn enemies two people or groups of people who will always hate each other
2. sworn statement/evidence/testimony etc a statement etc that someone makes after officially promising to tell the truth
| I |
the past participle of swear
| II |
adjective1. sworn enemies two people or groups of people who will always hate each other2. sworn statement/evidence/testimony etc a statement etc that someone makes after officially promising to tell the truth