κῶλον, -ου, τό a limb, member of a body, [but in LXX (Refs Lev.26:30, Num.14:29, 32-33, 1Ki.17:46, Isa.66:24*) for פֶּגֶר ;] hence, carcase: Heb.3:17 (LXX).† (AS)
Thayer:
1) a member of a body, particularly the more external and prominent members esp. the feet 2) a dead body, corpse, inasmuch as the members of a corpse are loose and fall apart
κῶλον
kōlon
ko'-lon
From the base of G2849; a limb of the body (as if lopped)