φιλοσυνήθης
From LSJ
οἱ τοῖς πέλας ἐπιβουλεύοντες, λανθάνουσι πολλὰκις ὑφ' ἑτέρων τοῦτ' αὐτὸ πάσχοντες → when people plot against their neighbours, they fall victim to the same sort of plot themselves
English (LSJ)
ες,
A loving one's associates, Plu.2.56c, Vett.Val. 40.14, Gloss.
German (Pape)
[Seite 1286] ες, Umgang, Gesellschaft liebend, Plut. ad. et am. discr. 18.