Chīlo (noun M) : * A cognomen, signifying having large lips, Fest. p. 43, 10 [χεῖλος, lip; cf. Charis. p. 78 P.; Vel. Long. p. 2234 ib.].
Charlton T. Lewis, Charles Short, A Latin Dictionary
Lewis Short
Chīlo (noun M) : Χίλων or Χείλων. * A Lacedoemonian, one of the seven wise men, Plin. 7, 32, 32, § 119; Aus. Sept. Sap. 6. * A Roman cognomen, Cic. Cat. 3, 6, 17.
Charlton T. Lewis, Charles Short, A Latin Dictionary
PIR
Male Personal name Confirmed occurences in the Roman Empire:
Iunius Chilo (Masc, eques), ref: PIR I 0744 | PIR ID7933
Mallius Chilo (Masc), ref: PIR M 0110 | PIR ID8753