FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

sustenazo συστενάζω — soos-ten-ad'-zo — from 4862 and 4727; to moan jointly, i.e. (figuratively) experience a common calamity:--groan together.

see GREEK for 4862

see GREEK for 4727