From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): ( n. pl.) See Scholium.

(2): ( pl.) of Scholium

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]

short notes of a grammatical or exegetical nature. Many scholia are found on the margin of manuscripts, or interlined, or placed at the end of a book. They have also been extracted and brought together, forming what is called Catena Patrum. (See Commentary).