The act of conquering or state of being conquered; a territory or people that has been conquered.
From 'conquer' (from Latin 'conquaerere,' to search for, seize) plus the suffix '-ment' (result or product of an action). The word emphasizes the outcome of conquest.
Conquerment is a perfect example of how English makes nouns from verbs—it's more formal than just saying 'conquest' but conveys the active process rather than just the result. Medieval chroniclers used this kind of terminology to describe territorial gains.
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