The act of working at something; labor or toil applied to a task; effort expended on work (archaic).
From Latin 'ad-' (to) + 'operatio' (working, operation). The -tion suffix transforms the verb into a noun. This term represents Renaissance and early modern scholarly attempts to create English equivalents for Latin scholarly concepts.
Adoperation is so archaic that most English speakers have never heard it, but it beautifully captures 'the work of working'—the noun form that emphasizes effort itself rather than just the task being done.
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