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English word disturb comes from Latin turbo, and later Old French (842-ca. 1400) destorber (To disrupt; to disturb.)
turbo (Latin)
tornado, whirlwind. Crowd I disturb, unsettle. I upset.
destorber (Old French)
To disrupt; to disturb.
distourber (Anglo-Norman)
disturb (English)
(intransitive) to have a negative emotional impact; to cause emotional distress or confusion.. (transitive) to confuse a quiet, constant state or a calm, continuous flow, in particular: thoughts, actions or liquids.. (transitive) to divert, redirect, or alter by disturbing. (obsolete) disturbance.