An archaic noun form meaning the state or act of binding oneself through mutual agreement; commitment.
From 'compromit' plus the suffix '-ment' (state or act of). This is an obsolete form derived from Latin 'compromittere,' representing earlier usage of these Latinate terms.
Words like 'compromitment' remind us that English speakers of past centuries had way more Latinate vocabulary than we do today. We've essentially traded fancy words like this for simpler ones—we say 'commitment' instead, which is shorter and comes from French rather than directly from Latin.
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