אַצִּיל ʼatstsîyl

Hebrew · Strong's H679 · pronounced ats-tseel' · used 3 times in 3 verses

Meaning

a joint of the hand (i.e. knuckle); also (according to some) a party-wall (Ezekiel 41:8)

In the King James Version: (arm) hole, great.

Derivation: from H680 (אָצַל) (in its primary sense of uniting);

Jeremiah 38:12 Ebed-melech the Cushite cried out to Jeremiah, “Put these worn-out rags and clothes under your arms to pad the ropes.” Jeremiah did so,
Ezekiel 13:18 and tell them that this is what the Lord GOD says: Woe to the women who sew magic charms on their wrists and make veils for the heads of people of every height, in order to ensnare their souls. Will you ensnare the souls of My people but preserve your own?
Ezekiel 41:8 I saw that the temple had a raised base all around it, forming the foundation of the side rooms. It was the full length of a rod, six long cubits.