Illustrated Companion to the Latin Dictionary/Castellarius
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.
CASTELLA'RIUS. An officer who had the charge of superintending the public reservoir (castellum) of an aqueduct. Front. Aq. 117. Inscript. ap. Grut. 601. 7.