You describe an adjective - this definition is a verb. The term is found in books going back as far as 1889, and has close to 5000 Google hits.
I reverted your changes to the article because adding comments to a definition is not how to handle concerns about the validity of a term. The proper procedure can be found at Requests for Verification -Versageek 01:35, 15 July 2006 (UTC)
- Can we use it in this sense?:
"If a student is going to change specialization, he should equivalate his old courses with the new ones?" If it is correct, can we add that to the entry?
- The OED hasn't recognised it as a word, which probably means that they regard it as an error for "equate". Of course, that doesn't mean that Wikipedia has to do the same. Some of the 313 hits in Google Books are probably errors where the author meant equate, but others seem to have a slightly more specific meaning of "be equivalent to". A few are just comments on the word being used in error. We probably have enough genuine usages to justify an entry, but we should indicate that it is non-standard. Dbfirs 14:07, 21 September 2011 (UTC)
This term was sent to RFV, and the discussion has been archived at Wiktionary:Requests for verification archive/2011 or Wiktionary:Requests for verification archive/2011/more. - -sche (discuss) 05:42, 1 April 2012 (UTC)