aven

from Easton's 1897 Bible Dictionary
Aven
nothingness; vanity. (1.) Hosea speaks of the "high places of
Aven" (10:8), by which he means Bethel. He also calls it
Beth-aven, i.e., "the house of vanity" (4:15), on account of the
golden calves Jeroboam had set up there (1 Kings 12:28).

  (2.) Translated by the LXX. "On" in Ezek. 30:17. The Egyptian
Heliopolis or city of On (q.v.).

  (3.) In Amos 1:5 it denotes the Syrian Heliopolis, the modern
Baalbec.
    
from Hitchcock's Bible Names Dictionary (late 1800's)
Aven, iniquity; force; riches; sorrow
    

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