Quick Definition
I faint, breathe out life, die
Strong's Definition
to breathe out, i.e. faint
Derivation: from G575 (ἀπό) and G5594 (ψύχω);
KJV Usage: hearts failing
Thayer's Greek Lexicon
ἀποψύχω; to breathe out life, expire; to faint or swoon away: Luk_21:26. (So Thucydides 1, 134; Bion 1, 9, others; 4Ma_15:18.)
Mounce Concise Greek Dictionary
ἀποψύχω apopsychō 1x
pr. to breathe out, faint away, die;
met. to faint at heart, be dismayed, Luk_21:26
Abbott-Smith Greek Lexicon
** ἀπο -ψύχω ,
[in LXX : 4Ma_15:18 * ;]
1. to breathe out life, expire (Thue.; LXX , l.c .).
2. to leave off breathing, faint ( Hom ., Od., xxiv, 348): seq . ἀπό , Luk_21:26 .†
Liddell-Scott — Intermediate Greek Lexicon
ἀποψύχω "to leave off breathing, to faint, swoon", Od. , NTest. c. acc., ἀπέψυξεν βίον "breathed out" life, Soph. : absol., like ἀποπνέω, Lat. exspiro, to expire, die Thuc. "to cool":— Pass., ἱδρῶ ἀπεψύχοντο χιτώνων "they got" the sweat "dried off" their tunics, Il. ; ἱδρῶ ἀποψυχθείς id=Il. ; metaph., ἀπεψυγμένοι "cold, indifferent", Arist. impers., ἀποψύχει "it grows, cool, the air cools", Plat.
STEPBible — Tyndale Abridged Greek Lexicon
ἀπο-ψύχω
[in LXX: 4Ma.15:18 * ;]
__1. to breathe out life, expire (Thue.; LXX, l.with).
__2. to leave off breathing, faint (Hom., Od., xxiv, 348): before ἀπό, Luk.21:26.†
(AS)