ἶρις G2463
îris · ee'-ris · Noun Feminine
perhaps from ἐρέω (as a symbol of the female messenger of the pagan deities); a rainbow ("iris"):--rainbow.
2 Occurrences in the King James Bible
Revelation 4:3And he that sat was to look upon like a jasper and a sardine stone: and there was a rainbow round about the throne, in sight like unto an emerald.
Revelation 10:1And I saw another mighty angel come down from heaven, clothed with a cloud: and a rainbow was upon his head, and his face was as it were the sun, and his feet as pillars of fire: