the.com/deterioration

Entropy filing a progress report.

means A gradual worsening or decline in quality, condition, or value over time.

from From Late Latin 'deteriorare,' meaning to make worse, built on 'deterior' meaning 'worse' — itself a comparative form related to 'de-' (down, away). The word entered English around the 17th century through French 'détérioration,' carrying that same sense of things sliding downward from a better state.

no positive form
deterior means worse, with no base word for good
first english use
appeared in the 1600s describing moral decline, not objects
engineering term
used precisely to measure material failure rates over time
opposite word
amelioration, from Latin melior, meaning better
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