buckle

باللغة العربية: اِنْثَنَى، تَقَوَّسَ، اِنْهَارَ

1. To cause (something) to bend, or to become distorted. (transitive)
2. Of a thing (especially a slender structure under compression): to collapse or distort under physical pressure. (intransitive)
3. Of a person: to (suddenly) cease resisting pressure or stress; to give in or give way, to yield. (figuratively, intransitive) · It is amazing that he has never buckled after so many years of doing such urgent work.

He/she/it buckles · الماضي buckled · التصريف الثالث (اسم المفعول) buckled · صيغة -ing buckling