Lexical Definition

‎πυῤῥάζω‎ pyrrházō (poor-hrad'-zo) be (fiery) red ^G:V
from ‎πυῤῥός‎

be red.

• to redden (intransitively)

Abbott-Smith

† πυρράζω (< πυρρός), [in LXX, πυρρίζω: Le 13:19, 42 ff. 14:37 (אֲדַמְדָּם)*;]
to be fiery red: 2, Matt.16.3.†

Abbott-Smith References

Liddell-Scott-Jones

πυρράζω-άζω,

to be fiery red, of the sky, [NT]

_{LSJ Scripture Refs: Matt.16.2}