κοινώνημα
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
ατος, τό,
A that which is communicated: pl., acts of communion, communications, dealings between man and man, Pl.R.333a, Lg.738a, Arist.Pol.1280b17; κ. πρός τινα J.AJ16.7.3; πρὸς ἀλλήλους Plu.2.158c; ψυχροῦ καὶ θερμοῦ κ. ib.951e: in sg., communication, λόγων Phld.Oec.p.46 J.; common enterprise, Id.Vit.p.33 J.; business partnership, Sammelb.5658.8. 2 point of junction, Hp.Epid.2.4.2. 3 connexion, Nic.Dam.128 J.