ἐχθρός (echthrósech-thros'adjectiveenemy)
[Grk] ἐχθρός LN: 39.11 GK: G2398 Hebrew: אָיַב, אֵיבָה, אָכַל, גֹּוי, זֵר, מֹות, עָר, עָרַב, צָמַת, צַר, צָרַר, קוּם, רַע, שׁוּר, שָׂנֵא
Derivation: from a primary ἔχθω (to hate);
Strong's: hateful (passively, odious, or actively, hostile); usually as a noun, an adversary (especially Satan)
KJV: --enemy, foe.