Lexical Definition

‎ἅλυσις‎ hálysis (hal'-oo-sis) chain ^G:N-F
of uncertain derivation

bonds, chain.

• a fetter or manacle

Abbott-Smith

** ἅλυσις, -εως, ἡ, [in LXX: Wi 17:17*;]
a chain, bond: Mk 5:3, 4, Lk 8:29, Ac 12:6, 7 21:33 28:20, Eph 6:20, II Ti 1:16, Re 20:1.†

Abbott-Smith References

Liddell-Scott-Jones

ἅλυσις

(on the breathing see Hdn.Gr. 1.539), εως, ἡ, chain, χαλκέῃ ἁλύσι δεδεμένη ἄγκυρα[NT+5th c.BC+]

__2 collectively, chains, bondage, [Refs 2nd c.BC+]
__3 link in chain armour, [Refs 2nd c.AD+]

_{LSJ Scripture Refs: Eph.6.20}