G2577G
κάμνω
be weary/sick: weak
κάμνω [in LXX: Job.10:1 (קוּט ni.) Job.17:2, Wis.4:16 15:9, 4Ma.3:8 4Mac 7:13 * ;] __1. to work; hence, from the effect of continued work, __2. to be weary: Heb.12:3 __3. to be sick: Jas.5:15.† (AS)
The KJV translates G2577 in the following manner:
fainted (2x), hast (2x), sick (2x), wearied (2x)
Full Thayer's lexicon entry
κάμνω — kámnō
κάμνω; 2 aorist ἔκαμον; perfect κέκμηκα;
1. to grow weary, be weary (so from Homer down): Rev 2:3 Rec.; Heb 12:3.
2. to be sick: Jas 5:15 (Sophocles (Herodotus), Aristophanes, Euripides, Xenophon, Plato, Aristotle, Diodorus, Lucian, others).
2 occurrences
Hebrews (1), Revelation of John (1)