Illustrated Companion to the Latin Dictionary/Decussis

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. 

DECUSSIS. A piece of money of the value of ten asses, which was marked with the letter X. Varro, L. L. v. 170. Stat. Sylv. iv. 9. 9.