FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

'atstsiyl ats-tseel' — from 680 (in its primary sense of uniting); a joint of the hand (i.e. knuckle); also (according to some) a party-wall (Ezek. 41:8):--(arm) hole, great.

see HEBREW for 0680