1. University of Pennsylvania, LJS 452 Title: Ex quo vocabularii varii et autentici Place: Germany Date: [14--]
2. University of Pennsylvania, Ms. Codex 1152 Title: Ex quo vocabularii autentici varii Place: Aachen Date: [between 1450 and 1499]
3. University of Pennsylvania, Oversize Ms. Codex 722 Title: Expositiones difficiliorum vocabulorum Author: William Brito Place: Royaumont Date: [1350?]
4. University of Pennsylvania, Ms. Coll 390, Item 34 Title: Nirukta Author: Yāska Date: circa 1700-1850.