G1668
ἕλκος
sore
ἑλκος, -εος (-ους), τό [in LXX: Exo.9:9-11, Lev.13:18-27, 4Ki.20:7, Job.2:7 (שְׁחִין) ;] __1. a wound (Hom.). __2. a sore, an ulcer (Thuc., al.): Luk.16:21, Rev.16:2, 11.† (AS)
The KJV translates G1668 in the following manner:
sores (4x), sore (2x)
Full Thayer's lexicon entry
ἕλκος — hélkos
ἕλκος, ἑλκεος (ἕλκους) (cf. Latinulcus,ulcerare; perhaps akin to ἕλκω (Etym. Magn. 331, 3; 641, 3), yet cf. Curtius, § 23), τό;
1. a wound, especially a suppurated wound; so in Homer and earlier writings.
2. from (Thucydides), Theophrastus, Polybius on, a sore, an ulcer: Rev 16:2; plural, Luk 16:21; Rev 16:11. (for שְׁחִין, Exo 9:9; Job 2:7, etc.)
3 occurrences
Luke (1), Revelation of John (2)