girdle

nouns

an encircling or ringlike structure
is a type of (narrower)
any structure created by the skeleton of an organism
a band of material around the waist that strengthens a skirt or trousers
a woman's close-fitting foundation garment

verbs

cut a girdle around so as to kill by interrupting the circulation of water and nutrients
"girdle the plant"
put a girdle on or around
"gird your loins"