sworn
Sworn (adj) means Made or declared formally under oath. Example: “The witness signed a sworn affidavit before the clerk at the courthouse.”
How to use sworn
Learner’s notesIn plain EnglishFormally promised or declared, often under oath — or, informally, fiercely committed (as in "sworn enemies").
Fill the gap
Can you complete this real example?
The witness signed a _____ affidavit before the clerk at the courthouse.
Etymology
The past participle of swear, from Old English sworen.