Boyd’s Bible Dictionary:
(sticks). Tree-trunks (Job 14:8); idols (Jer. 2:27); instruments of punishment made of beams of wood which closed over the arms or ankles (Job 13:27; 33:11; Jer. 20:2; Acts 16:24).
Concise Bible Dictionary:
Stocks
Various words are used for these instruments of punishment.
1. mahpecheth, a wooden frame in which the feet, hands, and neck of a person were so fastened that his body was kept bent. Jeremiah was subjected to this punishment (Jer. 20:2-3).
2. sad, stocks in which the feet were shut up (Job 13:27; Job 33:11; Acts 16:24—ξύλον).
3. tsinoq, stocks which confined the hands and the feet (Jer. 29:26).
4. ekes, “a fetter or ancle-band” (Prov. 7:22).
Strong’s Dictionary of Hebrew Words:
Meaning:
from an unused root meaning to estop; the stocks