Dismiss (verb)

1. To reject or dismiss someone or something as unimportant or of little worth.
2. To discharge or dismiss someone from employment, office, or duty.
3. To stop paying attention to or considering someone or something.

Origin:

Late 16th century, from latin dimissus, past participle of dimittere 'send away, dismiss', from dis- 'away' + mittere 'send'.

Examples:

1. The manager dismissed the idea as impractical.
2. The employee was dismissed for theft.
3. He dismissed her worries as trivial.
4. The court dismissed the charges against the defendant.
5. The company dismissed the idea of a merger as too risky.