Official approvals or confirmations; expressions of formal agreement or consent.
From Latin 'approbatio' (approval, assent), from 'approbatus' (approved). The '-tion' suffix forms nouns from verbs, and '-s' makes the plural.
In the 1700s, 'approbations' were printed endorsements from respected scholars—like receiving 'likes' before social media existed, they gave authority to new books.
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