Lewis Short
(verb) : sum-mŏnĕo (subm-), ŭi, 2
* To remind privily, give a hint (very rare): summonuit me Parmeno, quod, etc.,Ter. Eun. 3, 5, 22: patres salutavit nominatim singulos, nullo summonente,Suet. Aug. 53.
Charlton T. Lewis, Charles Short, A Latin Dictionary