Illustrated Companion to the Latin Dictionary/Rotula
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.
ROT'ULA (τροχίσκος). Diminutive of ROTA. Plaut. Pers. iii. 3. 30. Plin. H. N. xviii. 48.