A legal summons or the act of being summoned or challenged to appear, especially in Scottish law.
From accerse plus the suffix -ition (meaning action or process), following Latin patterns. This is a technical legal term that developed in Scottish jurisprudence.
Legal language loves to create abstract nouns from verbs—'accersition' takes the action of summoning and makes it a thing you can formally document, which is exactly what medieval Scottish courts needed!
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