Abarim Publications' online Biblical Hebrew Dictionary
The verb עשן ('sn) isn't used in the Bible, but it may have to do with an Arabic verb that means to rise. Its extant derivatives are:
- The noun עשן ('ashan), meaning smoke. Contrary to the verb קטר (qatar I), which is used to describe the production of pleasing smoke (from incense or a burned offering), our noun עשן ('ashan) primarily conveys anger. It heralds the destruction of a burning town (Joshua 8:20, Judges 20:38), an approaching foe (Isaiah 14:31), wickedness (Isaiah 9:18), even the breath of Job's Leviathan (Job 41:12). It signifies transitoriness (Psalm 102:3, Hosea 13:5) and unpleasantness (Proverbs 10:26). Our noun is also frequently applied in theophanies, mostly as a device to instill due reverence (Genesis 15:17, Exodus 19:18, 2 Samuel 22:9, also see Song of Solomon 3:6).
- The denominative verb עשן ('ashan), meaning to smoke (Exodus 19:18) or be angry (Psalm 80:4).
- The adjective עשן ('ashen), meaning smoking (Exodus 20:18, Isaiah 7:4).