Buckle

boucle

(metal clasp with a hinged tongue or a spike)

boucler

(to fasten (something) using a buckle; to fasten (something) in any way)

céder

(of a person: to (suddenly) cease resisting pressure or stress — see also give in, give way, yield)

déformer

(to cause (something) to bend, or to become distorted)

gauchir

(to cause (something) to bend, or to become distorted)

renoncer

(of a person: to (suddenly) cease resisting pressure or stress — see also give in, give way, yield)

se déformer

(of a thing: to collapse or distort under physical pressure)

s’affaisser

(of a person: to (suddenly) cease resisting pressure or stress — see also give in, give way, yield)

s’écrouler

(of a person: to (suddenly) cease resisting pressure or stress — see also give in, give way, yield)