The verb dismiss means to decide that something or someone is not important and not worth considering.

Synonyms are decline, disband, dissolve, or expel.

The word origins from dismissen meaning “release from court restraint or legal charges” in early 15th century, apparently from Latin dimissus, past participle of dimittere meaning “send away, send different ways, break up, discharge, renounce, abandon”. It comes from dis- meaning “apart, away” plus mittere meaning “send, let go”.

The police will dismiss the reports because of lack of information.

I can dismiss any accusation of impropriety by the Labour Party.

She wanted to dismiss him from her life.