Plural of bellicosity; multiple instances or examples of warlike or aggressive behavior or attitudes.
From 'bellicosity' (from Latin 'bellicosus' + '-ity' suffix) + '-ies' (plural suffix). The double suffix '-osity' is typical of abstract nouns derived from Latin adjectives.
Historians analyzing wars often document the 'bellicosities' of different nations—it's the fancy word for all the aggressive, confrontational behaviors that led to conflict!
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