overtalk

From over- +‎ talk.

overtalk (third-person singular simple present overtalks, present participle overtalking, simple past and past participle overtalked)

1. (intransitive) To talk too much.
2. (transitive) To overcome or persuade by talking; talk over.
3. (transitive) To overstate; overexaggerate; talk up to seem greater than what is actual.
   • 1889, William Henry Harrison Murray, The story that the keg told me and The story of the man who didn't

     […] and he panted like a young faan in her fust race with the hounds, for he was overtalkin' his strength, and I feered he would die for sartin ef he didn't fetch up a bit and git rested; […]

overtalk (countable and uncountable, plural overtalks)

1. Excessive talking.
2. Simultaneous speech or talk which drowns out all other speakers.

• undertalk

• talk over, talkover