In a manner relating to or characteristic of a convocation; according to the nature or purpose of a formal gathering or assembly.
From 'convocational' (relating to convocation) plus '-ly.' Convocation derives from Latin 'convocare': 'con-' (together) and 'vocare' (to call), meaning 'to call together.'
This adverb is almost never used in modern English, but convocations themselves (formal university and church assemblies) still exist—the decline of the adverb mirrors how these ceremonial gatherings have become less central to institutional life.
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