Boyd’s Bible Dictionary:
Seven Hebrew words so translated. It was of stone or iron, crudely fastened to a handle of wood (Deut. 19:5; 2 Kings 6:5-7).
Concise Bible Dictionary:
There are seven different Hebrew words translated “ax” or “axe,” with various shades of meaning (Deut. 19:5; Judg. 9:48; 2 Sam. 12:31; 1 Chron. 20:3; Psa. 74:6; Jer. 10:3; Ezek. 26:9; Matt. 3:10: Luke 3:9).
Strong’s Dictionary of Greek Words:
Meaning:
probably from ἄγνυμι (to break; compare 4486); an axe