ἐξαστράπτω G1823
exastráptō · ex-as-trap'-to · Verb
from ἐκ and ἀστράπτω; to lighten forth, i.e. (figuratively) to be radiant (of very white garments):--glistening.
1 Occurrence in the King James Bible
Luke 9:29And as he prayed, the fashion of his countenance was altered, and his raiment was white and glistering.