partner, companion
Ancient Greek word, found 140 times in the texts on Socratos.
Diogenes Laertius, Vitae philosophorum 6.7.96: … ἑαυτοῦ σκευὴν ἀντικρὺ αὐτῆς ἔφη, ὁ μὲν νυμφίος οὗτος, ἡ δὲ κτῆσις αὕτη, πρὸς ταῦτα βουλεύου· οὐδὲ γὰρ ἔσεσθαι κοινωνόν, εἰ μὴ καὶ τῶν αὐτῶν ἐπιτηδευμάτων γενηθείη.
Euripides, Medea 1361: καὐτή γε λυπῇ καὶ κακῶν κοινωνὸς εἶ.
Euripides, Heracles 584: πατέρα τε πρέσβυν τήν τε κοινωνὸν γάμων.
All forms of κοινωνός