Webster's Revised Unabridged Dictionary · 1913

Disturb

Disturb , transitive verb

[Old English desturben, destourben, Old French destorber, desturber, destourber, from Latin disturbare, disturbatum; dis- + turbare to disturb, trouble, turba disorder, tumult, crowd. See Turbid.]

1.
To throw into disorder or confusion; to derange; to interrupt the settled state of; to excite from a state of rest.
Preparing to disturb With all-cofounding war the realms above. — Cowper
The bellow's noise disturbed his quiet rest. — Spenser
The utmost which the discontented colonies could do, was to disturb authority. — Burke
2.
To agitate the mind of; to deprive of tranquillity; to disquiet; to render uneasy; as, a person is disturbed by receiving an insult, or his mind is disturbed by envy.
3.
To turn from a regular or designed course. [Obsolete]
And disturb His inmost counsels from their destined aim. — Milton

Disturb , noun

Disturbance. [Obsolete] — Milton