Liddell-Scott-Jones

ὅμηρος (homēros) a security treaty ^G:N-N

ὅμηρος, ὁ,

pledge, surety, hostage, ὁμήρους λαμβάνειν [Refs 5th c.BC+]; ἄγεσθαι ὅμηροι to be carried off as hostages, [Refs]; τοῖον ὅμηρόν μ᾽ ἀποσυλήσας having robbed me of such a hostage, [Refs 5th c.BC+]; ἔχω γ᾽ ὑμῶν ὁμήρους have hostages for you, [Refs 5th c.BC+]; of things, τὴν γῆν ὅμηρον ἔχειν [Refs 5th c.BC+]; ὥσπερ.. ὁμήρους ἔχομεν τοῦ λόγου τὰ παραδείγματα [Refs 5th c.BC+]: neuter plural even of one person, μὴ πεμψάτω ὅμηρα τῶν Αἰαντείων μηθένα [Refs]; ὃς ἦν ὅμηρα [LXX]