Lewis Short
commentātor (noun M) : 2. commentor.
* An inventor, contriver (post-class. and rare): omnium falsorum,App. Mag. p. 321, 36: evangelii,i. e. the author,Tert. Res Carn. 33.
* An interpreter: legum,Cod. Just. 1, 17, 2, § 20; Serv. ad Verg. E. 6, 11.
Charlton T. Lewis, Charles Short, A Latin Dictionary