Etymology
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undervalue (v.)
1590s, "to rate as inferior in value" (to), from under + value (v.). Sense of "to estimate or esteem too low" is recorded from 1610s. Meaning "to rate at too low a monetary value" is attested from 1620s. Related: Undervalued; undervaluing.
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invaluable (adj.)
1570s, "above value, too valuable for exact estimate," from in- (1) "not" + value (v.) "estimate the worth of" + -able. It also has been used in a sense "without value, worthless" (1630s, from in- + valuable). Related: Invaluably.
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worth (n.)
Old English weorþ "value, price, price paid; worth, worthiness, merit; equivalent value amount, monetary value," from worth (adj.). From c. 1200 as "excellence, nobility."
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prize (v.1)

1580s, "to estimate the value of; value highly," spelling alteration of Middle English prisen "to reckon the worth of, value, esteem, praise" (late 14c.), from stem of Old French preisier "to praise" (see praise (v.)). Related: Prized; prizing.

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rate (v.2)

"estimate the worth or value of, reckon by comparative estimation," mid-15c., raten, from rate (n.). Intransitive sense of "have a certain value, rank, or standing" is from 1809; specifically as "have high value" by 1928. Related: Rated; rating.

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depreciation (n.)

1767, "a lowering of value" (originally of currency), noun of action from depreciate. Sense of "a belittling, deliberate underestimation of the merits of a person, action, or thing" is from 1790. Meaning "loss of value of a durable good by age or wear" is from 1900.

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appreciate (v.)

1650s, "to esteem or value highly," from Late Latin appretiatus, past participle of appretiare "to set a price to," from ad "to" (see ad-) + pretium "price" (see price (n.)). Meaning "to rise in value" (intransitive) is by 1787; sense of "be fully conscious of" is by 1833. "Appreciate is to set a just value on; it implies the use of wise judgment or delicate perception" [Century Dictionary]. Related: Appreciated; appreciating.

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esteem (v.)
mid-15c., from Old French estimer "to estimate, determine" (14c.), from Latin aestimare "to value, determine the value of, appraise," perhaps ultimately from *ais-temos "one who cuts copper," i.e. mints money (but de Vaan finds this "not very credible"). At first used as we would now use estimate; sense of "value, respect" is 1530s. Related: Esteemed; esteeming.
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valorization (n.)
1906, from valor "value" (late 15c.), variant of valour (see valor).
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depreciate (v.)

mid-15c., "to undervalue, under-rate," from Latin depretiatus, past participle of depretiare "to lower the price of, undervalue," from de "down" (see de-) + pretium "price" (see price (n.)). From 1640s in transitive sense of "lessen the value of, to lower in value." Intransitive sense of "to fall in value, become of less worth" is from 1790. Related: Depreciated; depreciating.

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