παράσιτος
From LSJ
ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod
English (LSJ)
ὁ,
A one who eats at the table of another, and repays him with flattery and buffoonery, parasite, Epich.36, Arar.16, etc.; name of plays by Antiph., Alex., and Diph.; περὶ Παρασίτου, title of work by Luc.: c. gen., κενῆς π. τραπέζης AP11.346 (Autom.) : metaph., ἰχθὺς ἦν π. (v. ὄψον) Luc.Lex.6. II of priests who had their meals at the public expense, Clitodem.11, Polem.Hist.78. 2 one who dines with a superior officer, Arist.Fr.551.