Exaggeration

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mid 16th century: from Latin exaggerat- ‘heaped up’, from the verb exaggerare, from ex- ‘thoroughly’ + aggerare ‘heap up’ (from agger ‘heap’). The word originally meant ‘pile up, accumulate’, later ‘intensify praise or blame’, giving rise to current senses.

wiktionary

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From Latin exaggeratio

etymonline

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exaggeration (n.)

"unreasonable or extravagant amplification," 1560s, from Latin exaggerationem (nominative exaggeratio) "elevation, exaltation" (figurative), noun of action from past-participle stem of exaggerare "amplify, magnify," literally "heap up" (see exaggerate).