idol, no value, thing of nought

Boyd’s Bible Dictionary:

(apparent). An object of worship, other than God (Gen. 31:19); idolatry forbidden (Ex. 20:3-4; 34:13; Deut. 4:16-19; 7:25-26); yet existed largely, especially under the judges and later kings (Ex. 32; Judg. 2:10-23; 1 Kings 11:33; 12:27-33; 14:22-24; Isa. 57:5-8).

Strong’s Dictionary of Hebrew Words:

Transliteration:
’eliyl
Phonic:
el-eel’
Meaning:
apparently from 408; good for nothing, by anal. vain or vanity; specifically an idol
KJV Usage:
idol, no value, thing of nought