noun / verb
noose
NOOSS/nuːs/
A loop that tightens when pulled, or to catch or secure with such a loop.
The rope's noose rests as a sliding loop on the tabletop.

Etymology
A connection with Old French nos or Old Provençal nous, meaning 'knot,' is suggested but uncertain. The English word denotes a loop formed with a running knot that allows it to tighten.
In context
nothing done? Yes, yes; I have not taken the loop off the armhole! I forgot it, forgot a thing like that! Such a piece of evidence! He pulled off the noose, hurriedly cut it to pieces