[δυσεντερία] from G1418 and a comparative of G1787 (meaning a bowel); a "dysentery"
Usages throughout the bible
Acts 28:8
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And it came to pass, that the father of Publius lay sick of a fever and of a bloody flux: G1420 to whom Paul entered in, and prayed, and laid his hands on him, and healed him.