From agon; a struggle (properly, the state), i.e. (figuratively) anguish -- agony.
see GREEK agon
1. equivalent to ἀγών, which see.
2. It is often used, from Demosthenes (on the Crown, p. 236, 19 ἦν ὁ Φίλιππος ἐν φόβῳ καί πολλή ἀγωνία) down, of severe mental struggles and emotions, agony, anguish: Luke 22:44 (L brackets WH reject the passage); (2 Macc. 3:14, 16 2Macc. 15:19; Josephus, Antiquities 11, 8, 4 ὁ ἀρχιερεύς ἦν ἐν ἀγωνία καί δηι. (Cf. Field, Otium Norv. iii. on Luke, the passage cited.)