Strong’s Greek
G2184 — ephemeros
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἐφήμερος
ephemeros — pronounced ef-ay'-mer-os
from 1909 and 2250; for a day ("ephemeral"), i.e. diurnal:--daily. see GREEK for 1909 see GREEK for 2250
0 occurrences in the KJV.