predeclare

pre- +‎ declare

predeclare (third-person singular simple present predeclares, present participle predeclaring, simple past and past participle predeclared)

1. (transitive) To declare or announce beforehand.
   • 1855, Henry Hart Milman, History of Latin Christianity‎:

     their indefeasible power of predeclaring the eternal destiny of every living layman

2. (transitive, programming) To declare some source code element (such as a class) in advance of its full description, so that other preceding parts of the code can refer to it.

   Synonym: forward-declare

• precleared