The act of heaping up or accumulating; piling on additional burdens or grievances.
From Latin exacervare (ex- 'out' + acervus 'heap') + -tion. A very rare word that refers to accumulation, distinct from exacerbation, though sometimes confused with it.
This word is so obscure it's barely found outside historical medical texts, but it literally means 'heaping up'—perfect for describing how problems compound when you keep adding more on top.
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