sum-mŏnĕo (subm-), ŭi, 2, v. n.,
to remind privily , give a hint (very rare): summonuit me Parmeno, quod, etc., Ter. Eun. 570: patres salutavit nominatim singulos, nullo summonente, Suet. Aug. 53.
sub-moneō (summ-) uī, —, ēre, to remind privily, hint: me, quod, etc., T. ...
An Elementary Latin Dictionary