Lewis Short
ēvŏcātĭo (noun F) : evoco
* A calling out, calling forth (very rare).
* In gen.: inferorum,an evoking,Plin. 30, 1, 2, § 6: deorum ex urbibus obsessis,Macr. S. 3, 9.
* In partic.
* A summoning of a debtor, Hirt. B. Alex. 56 fin.
* A calling out, summoning of soldiers on an occasion of sudden danger, Auct. Her. 3, 2, 3: militiae,Jul. Val. Rer. Gest. Alex. 2, 7; cf. Don. Ter. Eun. 4, 7, 2; Serv. Verg. A. 7, 614.
Charlton T. Lewis, Charles Short, A Latin Dictionary