The act of devising; something that is devised, invented, or arranged; a devise or will provision.
From devise plus -al (suffix forming nouns from verbs, from Latin). Similar formations: approval, refusal, dismissal, arrival.
The -al suffix creates nouns from verbs (often Latin-derived verbs) to name the action or result—'devisal,' 'denial,' 'refusal'—and it's particularly common in legal and formal English where actions need formal names.
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