Allege (verb)

1. To state something without providing proof.
2. To claim that something is true without providing evidence.

Origin:

Late middle english: from old french aléger, from latin allegare "propose, assert", from ad- "to" + legare "send, depute".

Examples:

1. The company alleges that the employee stole company secrets.
2. He alleged that he was innocent.
3. She alleged that she was mistreated by her boss.
4. The police alleged that the suspect was involved in the robbery.
5. The newspaper alleged that the politician was corrupt.