missĭto, āvi, ātum, 1, v. freq. a. [mitto],
to send repeatedly, to send (not in Cic. or Caes.): supplicantes legatos, Sall. J. 38, 1: auxilia, Liv. 9, 45, 5: litteras, Front. de Eloq. p. 234 Mai.: codicillos missitatos, Plin. 33, 1, 4, § 12.
missitō āvī, —, āre, freq.mitto, to send repeatedly : supplicantīs legatos, S.: auxilia, L. ...
An Elementary Latin Dictionary