IPA: /kəˌpɪtʃʊˈleɪʃən/
KK: /kəˌpɪtʃʊˈleɪʃən/
The act of giving up or surrendering, often in a formal way, usually after a conflict or negotiation.
The army's capitulation marked the end of the long and difficult war.
Capitulation is formed from "capit-" (from Latin "caput", meaning head) and "-ulation" (a suffix indicating the action or process). The term originally referred to the act of surrendering or giving up, as if one is yielding their head or leadership in a conflict.
Think of 'caput' meaning 'head' to remember that 'capitulation' refers to the act of yielding or surrendering, as if giving up one's leadership.