ἄθροισμα
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)
τό,
A that which is gathered, a gathering, ἀστῶν E.Or.874, cf. LXX 1 Ma.3.13; κυνῶν D.S.34.2.30. 2 process of aggregation, Pl.Tht.157b; aggregate, τέχνη ἄ. καταλήψεων Chrysipp.Stoic.2.23; ψυχὴ ἐννοιῶν καὶ προλήψεων ἄ. ib.2.228, cf. Gal.1.67; compound, Max. Tyr.40.5. II in Epicur. philos., assemblage of atoms, Epicur. Fr.59, al.; esp. of the human organism, Id.Ep.1p.19U., al.