concertor
Could not find concertasse in Logeion dictionaries.
concertasse Verb: perfect active infinitive of concertor
concertor, āri, 1, v. dep.;
- collat. form of concerto, q. v. (late Lat.), Vulg. Sap. 15, 9; id. Ecclus. 38, 29.
con-certor, ārī = concerto (w.s.), Ps. Cypr. de spect. 3. Vulg. sap. 15, 9 u. Sirach 38, 29. Itala (Tolet.) ep. Iudae 3.
concertor, ārī, intr., Vulg. Sap. 15, 9, c. concerto.