Strong’s Greek
G1363 — diploo
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
διπλόω
diploo — pronounced dip-lo'-o
from 1362; to render two-fold:--double. see GREEK for 1362
1 occurrence in the KJV.
Revelation 18:6
Reward her even as she rewarded you, and double unto her double according to her works: in the cup which she hath filled fill to her double.