H679. atstsil
[אַצִּיל noun [feminine] joining, joint (compare elbow) — plural construct [י]יד אַצִּילֵי [Ezek 13:18] (on יד compare Sm Co); — joint of hand, i.e. elbow [13:18]; יָדֶיךָ אַצִּילוֺת [Jer 38:12] arm-joints. — אִַצּילָה׃ [Ezek 41:8] obscure; perhaps ׳א is here a technical architectural term to the joining (compare Sm Ke).