variorum

variorum An edition of a written work (especially the complete works of a classical writer) showing the notes and readings of a variety of different editors or commentators.
2007: Johnson set out to produce a variorum, compiling and summarising the history of Shakespearean emendation and annotation — Michael Dobson, ‘For his Nose was as sharpe as a Pen’, London Review of Books 29:9, p. 5
(inflection of)