Lexical Definition

‎ἰός‎ iós (ee-os') poison/rust G:N-M
perhaps from (to go) or (to send)

poison, rust.

Usage: 5 forms in 11 verses
Form Translated As     In Verse(s)
ἰὸσ rust Jas.5.3
venom Rom.3.13
ἰοῦ of poison Jas.3.8
ιόσ αυτήσ of her poison LXX.Ezek.24.12
ιόσ her poison LXX.Ezek.24.11LXX.Ezek.24.13
poison LXX.Ps.140.3LXX.Prov.23.32LXX.Ezek.24.6LXX.Ezek.24.6
ιούσ poison LXX.Lam.3.13

Abbott-Smith

ἰός, -οῦ, ὁ, [in LXX: Ez 24:6, 11, 12 (חֶלְאָה), Ps 139 (140):3* (חֵמָה), al.;]
1. an arrow.
2. rust (Ez 24:6): Ja 5:3 (cf. MM, Exp., xv).
3. poison: fig., Ro 3:13 (Ps 139 (140):3*), Ja 3:8.†

Abbott-Smith References

Book Refs
Psalms 140:3*
Ezekiel 24:6 · 24:11 · 24:12
Romans 3:13
James 3:8 · 5:3

Liddell-Scott-Jones

ἰός [], ,

__C rust on iron, or verdigris on copper and bronze, [Refs 7th c.BC+]; patina on bronze statues, ὅπως καθαρὸς ἰοῦ ἔσται ἀνδριάς [ἰός 5th c.BC: Bacchylides Lyricus) ">Refs 5th c.BC+]