eusplanchnos (2155), "compassionate, tenderhearted," lit., "of good heartedness" (eu, "well," and splanchnon), is translated "pitiful" in <1 Pet. 3:8>, KJV, RV, "tenderhearted," as in <Eph. 4:32>.
(from Vine's Expository Dictionary of Biblical Words)
(Copyright (C) 1985, Thomas Nelson Publishers)
eusplagchnos (yoo'-splangkh-nos);
from 2095 and 4698; well compassioned, i.e. sympathetic:
KJV-- pitiful, tender-hearted.
eu (yoo);
neuter of a primary eus (good); (adverbially) well:
KJV-- good, well (done).
splagchnon (splangkh'-non);
probably strengthened from splen (the "spleen"); an intestine (plural); figuratively, pity or sympathy:
KJV-- bowels, inward affection, + tender mercy.