Illustrated Companion to the Latin Dictionary/Coopertorium
This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich.
COOPERTO'RIUM. Loose clothing, as a covering for animals, objects, or persons. Veg. Vet. iii. 77. Scaev. Dig. 34. 2. 39.