Abarim Publications' online Biblical Hebrew Dictionary
The verb כהה (kaha) means to be dim or darkened and is often used for the effects old age has on one's eyesight (Deuteronomy 34:7, Isaiah 42:4). It comes with two derivatives:
- The adjective כהה (keheh), meaning dim, dull or faint (1 Samuel 3:2, Isaiah 61:3).
- The feminine noun כהה (keha), meaning a lessening or alleviating. Some translations read "healing," but that overshoots the meaning of this root somewhat. It occurs only in Nahum 3:19.