codesign

From co- +‎ design.

codesign (third-person singular simple present codesigns, present participle codesigning, simple past and past participle codesigned)

1. (transitive) To design together.
   • 2008 June 15, Douglas R. Hofstadter, “Reading File”, in New York Times‎^[1]:

     And I get a huge kick out of laughing at the hilariously unpredictable inflexibility of the computer models of mental processes that my doctoral students and I codesign.

• codesigner

From code +‎ sign.

codesign (third-person singular simple present codesigns, present participle codesigning, simple past and past participle codesigned)

1. (transitive) To cryptographically sign (software).

• co-signed, cognised, cosigned, dignosce