The act or state of being unsettled; a lack of peace, stability, or comfort.
From dissettle + -ment (noun suffix). The -ment suffix, from Old French and Latin -mentum, creates nouns describing results or states. This reflects Middle English and Early Modern English word-building patterns.
The -ment suffix is like a converter that turns actions and qualities into things—'settle' becomes a state of being unsettled through 'dissettlement.' English borrowed this incredibly useful suffix from French conquerors in 1066.
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