adversaria

noun plural but singular or plural in construction

ad·​ver·​sar·​ia

ˌad-vər-ˈsa-rē-ə

1

: commentaries or notes (as on a text or document)

2

: a miscellaneous collection of notes, remarks, or selections : commonplace book

Word History

Etymology

Latin, journal, memorandum, from neuter plural of adversarius turned toward

First Known Use

1571, in the meaning defined at sense 1

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