Illustrated Companion to the Latin Dictionary/Cuniculus

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. 

CUNIC'ULUS (ὑπονόμος). Any subterranean passage, but more especially a mine in military operations. Veget. i. 6. Liv. v. 21. Ammian. xxiv. 4. 21.