Abbott-Smith Manual Greek Lexicon
ἶρις (G2463)
2 ἶρις , -ιδος, ἡ , [in LXX: Ex 30:24 ( קִדָּה )*, ( קֶשֶׁת , Ge 9:13 , Ez 1:28 , is rendered by τόξον );] Iris , the messenger of the gods. a rainbow or halo : Re 4:3 10:1 . The plant Iris (cf. Ex 30:24 ).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain