σύνθηρος
From LSJ
Ὁ αὐτὸς ἔφησε τὸν μὲν ὕπνον ὀλιγοχρόνιον θάνατον, τὸν δὲ θάνατον πολυχρόνιον ὕπνον → Plato said that sleep was a short-lived death but death was a long-lived sleep
English (LSJ)
ον,
A hunting with, τῷ Κύρῳ X.Cyr.3.1.7; σ. κύνες hunting with (Artemis), AP9.303 (Adaeus): as Subst., σ. Ἀρτέμιδος her fellowhuntress, Apollod.3.8.2: c. gen. object., joining in quest of, τῶν ἀγαθῶν φίλων X.Mem.2.6.35.
German (Pape)
[Seite 1025] mit, zugleich, zusammen jagend; κύνες, Add. 4 (IX, 303); Xen. Cyr. 3, 1, 7.