Etymology
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operational (adj.)

1922, "pertaining to operation," from operation + -al (1). Meaning "in a state of functionality" is from 1944.

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damage (n.)
Origin and meaning of damage

c. 1300, "harm, injury; hurt or loss to person, character, or estate," from Old French damage, domage  "loss caused by injury" (12c., Modern French dommage), from dam "damage," from Latin damnum "loss, hurt, damage" (see damn). In law (as damages) "the value in money of what was lost or withheld, that which is given to repair a cost," from c. 1400. Colloquial sense of "cost, expense" is by 1755. Damage control "action taken to limit the effect of an accident or error" is attested by 1933 in U.S. Navy jargon.

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damage (v.)
Origin and meaning of damage

"cause damage to, hurt, injure, harm," early 14c., from Old French damagier, from damage "loss caused by injury" (see damage (n.)). Related: Damaged; damaging.

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operationalize (v.)

1954, in psychology, "express in operational terms," from operational + -ize. Related: Operationalized; operationalizing; operationalization (1966).

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indemnity (n.)

mid-15c., indempnite, "security or exemption against damage, loss, etc.," from Old French indemnité (14c.), from Late Latin indemnitatem (nominative indemnitas) "security for damage," from Latin indemnis "unhurt, undamaged," from in- "not, opposite of, without" (see in- (1)) + damnum "damage" (see damn). Meaning "legal exemption" is from 1640s; sense of "compensation for loss" is from 1793. Related: Indemnitor; indemnitee.

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ARPANET 

acronym from Advanced Research Projects Agency Network, set up in 1969 by a branch of the U.S. Department of Defense in partnership with four universities; acknowledged as "the world's first operational packet switching network" and predecessor of the internet.

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indemnification (n.)

1732, "action of compensating for loss or damage," noun of action from indemnify.

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malware (n.)

"software intended to damage or disable computers and computer systems," 1997, from mal- + -ware, from software, etc.

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breakage (n.)

1767, "loss or damage done by breaking;" 1813, "action of breaking;" from break (v.) + -age.

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indemnify (v.)

"compensate for loss or expense," 1610s, from Latin indemnis "unhurt" (see indemnity) + -fy. Related: Indemnified; indemnifying. "Indemnify formerly meant to save a person from damage or loss, but now much more often means to make good after loss or the damage of property." [Century Dictionary]

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