Strong’s Greek
G797 — astrapto
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀστράπτω
astrapto — pronounced as-trap'-to
probably from 792; to flash as lightning:--lighten, shine. see GREEK for 792
2 occurrences in the KJV.
Luke 17:24
For as the lightning, that lighteneth out of the one part under heaven, shineth unto the other part under heaven; so shall also the Son of man be in his day.
Luke 24:4
And it came to pass, as they were much perplexed thereabout, behold, two men stood by them in shining garments: