G1436
ἔα
ha!/aha!
ἔα, interj., expressing surprise, indignation, fear (in cl. chiefly in poët.), ah! ha!: Luk.4:34.† (AS)
The KJV translates G1436 in the following manner:
alone (4x), Let (4x)
Full Thayer's lexicon entry
ἔα — éa
ἔα, an interjection expressive of indignation, or of wonder mixed with fear (derived apparently from the imperative present of the verb ἐάν (according to others a natural instinctive, sound)), frequent in the Attic poets, rare in prose writings (as Plato, Prot., p. 314 d.), "Ha! Ah!": Mar 1:24 R G; Luk 4:34; cf. Fritzsche on Mark, p. 32f.
2 occurrences
Mark (1), Luke (1)