Lexical Definition

‎σπλαγχνίζομαι‎ splanchnízomai (splangkh-nid'-zom-ahee) to pity ^G:V
middle voice from ‎σπλάγχνον‎

have (be moved with) compassion.

• to have the bowels yearn, i.e. (figuratively) feel sympathy, to pity

Abbott-Smith

σπλαγχνίζομαι (< σπλάγχνον), [in LXX (act., -ίζω): Pr 17:5 A, II Mac 6:8 (= -εύω) * ;]
to be moved as to the σπλάγχνα (q.v.), hence, to feel pity or compassion: absol., Lk 10:33 15:20; ptcp., σλαγχνισθείς, c. indic., Mt 18:27 20:34, Mk 1:41; seq. ἐπίπ, c. dat. pers., Mt 14:14, Lk 7:13; ἐπί, c. acc., Mt 15:32, Mk 6:34 8:2 9:22; περί, Mt 9:36. (The word is elsewhere found only in Sm: I Ki 23:21, Ez 24:21, Test. Zeb., 4:6-7; v. Thayer, s.v.; MM, xxiii quote Thumb, Hellen., 123 as practically confirming Lft. on Phl 1:8, in the suggestion that the verb was a coinage of the Jewish dispersion.) †

Abbott-Smith References

Liddell-Scott-Jones

σπλαγχνίζω-ίζω,

= σπλαγχνίζωεύω, [LXX]:—passive, [Refs 4th c.BC+].

__II middle (with aorist passive -ίσθην), feel pity, compassion, or mercy, [LXX+NT]; οὐκ ἐσπλαγχνίζωίσθη had no mercy, [Refs 6th c.AD+]

_{LSJ Scripture Refs: LXX.Prov.17.5 ☩ Mark.6.34 ☩ Matt.9.36}