[ ˌvɛ:rɪ'ɔ:rəm ]
■ adjective (of an edition of an author's works) having notes by various editors or commentators.
↘including variant readings from manuscripts or earlier editions.
■ noun a ~ edition.
Origin
C18: genitive plural of varius 'diverse', from L. editio cum notis ~ 'edition with notes by various (commentators)'.