Disturbed

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Middle English: from Old French destourber, from Latin disturbare, from dis- ‘utterly’ + turbare ‘disturb’ (from turba ‘tumult’).

etymonline

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disturbed (adj.)

1590s, "agitated, put out of a settled state or regular order," past-participle adjective from disturb. Meaning "emotionally or mentally unstable" is from 1904.