Strong's #4449: purrhazo (pronounced poor-hrad'-zo)
from 4450; to redden (intransitively):--be red.
Thayer's Greek Lexicon:
̓̔́
purrhazō
1) to become glowing, grow red, be red
Part of Speech: verb
Relation: from G4450
Usage:
This word is used 2 times:
Matthew 16:2: "for the sky is red."
Matthew 16:3: "for the sky is red and lowering. O ye hypocrites, ye can"