Definify.com

Webster 1913 Edition

Noun.

Prolixity.

Adam Smith.

Noun.

Great length; minute detail; applied only to discourses and writings. Prolixity is not always tedious.

prolixness ‎(uncountable)

prolixity
- Adam Smith
  It is unnecessary to take any pains to show how much this prolixness must enervate the eloquence of all modern languages.