nounize

noun +‎ -ize

nounize (third-person singular simple present nounizes, present participle nounizing, simple past and past participle nounized)

1. (transitive) To change (an adjective, verb, etc.) into a noun.
   • 1871, John Earle, The Philology of the English Tongue:

     there (nounized)

• nominalize

“nounize”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.