The word 丢盔弃甲 is formed by combining two parallel verb-object phrases: 丢盔 (discard helmet) and 弃甲 (abandon armor), where the verbs 丢 and 弃 are synonyms meaning to throw away, and the objects 盔 and 甲 are related warfare items referring to helmet and armor respectively; this structure creates a compounded meaning emphasizing the complete abandonment of military equipment.