Strong’s Greek
G5241 — huperentugchano
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ὑπερεντυγχάνω
huperentugchano — pronounced hoop-er-en-toong-khan'-o
from 5228 and 1793; to intercede in behalf of:--make intercession for see GREEK for 5228 see GREEK for 1793
1 occurrence in the KJV.
Romans 8:26
Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered.