Verbosity (noun)

1. The quality of using many words, especially too many words; wordiness.
2. The quality of using words in a lengthy and convoluted manner.

Origin:

Late 15th century: from old french verbosité, from latin verbositas, from verbosus (see verbose).

Examples:

1. His verbosity made it difficult for others to understand him.
2. Her speeches were famous for their verbosity.
3. The meeting was delayed due to the Chairman's verbosity.
4. His verbosity was often seen as a sign of his insecurities.
5. Her verbosity was the result of her nervousness and lack of confidence.