overauthor

verb2

1. •
   To add too many names to the list of authors on a work produced by a team.

   • In most cases, it is better to "overauthor" in team publications than to "underauthor", to include an individual if there is... — 1982
2. •
   To continue revising a work past the point where the revisions improve the work.

   • In 1817, which marks the first appearance of The Ancient Mariner as a work by Coleridge, the poem is, by contrast, almost overauthored. — 1994