Abbott-Smith Manual Greek Lexicon
στενάζω (G4727)
6 στενάζω [in LXX for אנח ni., אנק , etc. ;] to groan ("the word denotes feeling which is internal and unexpressed," Mayor, Ja. , 162): Mk 7:34 , II Co 5:2 , 4 , He 13:17 , Ja 5:9 (EV, murmur ); ἐν ἑαυτοῖς , Ro 8:23 (cf. ἀνα- , συ(ν)-στενάζω ).† SYN. : v.s. κλαίω
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain