Red - Vine's Expository Dictionary of New Testament Words
Red[ A-1,Adjective,G4450, purrhos ]
denotes fire-colored" (pur, "fire"), hence, "fiery red," Revelation 6:4; Revelation 12:3, in the latter passage said of the Dragon, indicative of the cruelty of the Devil.
[ A-2,Adjective,G2063, eruthros ]
denotes "red" (the ordinary color); the root rudh---, is seen, e.g., in the Latin rufus, Eng., "ruby," "ruddy," "rust," etc. It is applied to the Red Sea, Acts 7:36; Hebrews 11:29. The origin of the name is uncertain; it has been regarded as due, e.g., to the color of the corals which cover the Red Sea bed or line its shores, or to the tinge of the mountains which border it, or to the light of the sky upon its waters.
[ B-1,Verb,G4449, purrhazo ]
"to be fiery red" (akin to A, No. 1), is used of the sky, Matthew 16:2-Matthew 16:3. In the Sept., purrhizo, Leviticus 13:19, Leviticus 13:42-Leviticus 13:43, Leviticus 13:49; Leviticus 14:37.