G4698 σπλάγχνον (splánchnon)

KJV renderings: bowels, inward affection, + tender mercy
Strong's definition: an intestine (plural); figuratively, pity or sympathy
Derivation: probably strengthened from (the "spleen");

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.