Overshadow - Vine's Expository Dictionary of New Testament Words
Overshadow
[ 1,,G1982, episkiazo ]to throw a shadow upon" (epi, "over," skia, "a shadow"), "to overshadow," is used
(a) of the bright cloud at the Transfiguration, Matthew 17:5; Mark 9:7; Luke 9:34;
(b) metaphorically of the power of "the Most High" upon the Virgin Mary, Luke 1:35;
(c) of the Apostle Peter's shadow upon the sick, Acts 5:15.
[ 2,,G2683, kataskiazo ]
lit., "to shadow down," is used of the "overshadowing" (RV) of the cherubim of glory above the mercy seat, Hebrews 9:5 (AV, "shadowing").