Relating to or involving the action of compiling; having the nature of a compilation.
From Latin compilare + -atory (suffix meaning relating to or serving to). The -atory suffix comes from Latin and typically describes actions, purposes, or qualities related to the root verb.
The adjective 'compilatory' is rarely used today, which is interesting because we've shifted from thinking of compilation as an act (compilatory work) to thinking of it as a product (a compilation). This mirrors how we stopped saying 'inventive' things and started calling them 'innovative.'
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