LATIN DICTIONARYLexicon Latīnum
noun · masculinethird declension

decussis

decussis m (genitive decussis)
Classical[dɛˈkʊs.sɪs]Ecclesiastical[deˈkus.sis]

Meaning

  1. masculineten (number)
  2. masculinea coin worth ten asses
  3. masculineintersection of two lines in form of a cross

Declension

declension
formsingularplural
nominativedecussisdecussēs
genitivedecussisdecussium
dativedecussīdecussibus
accusativedecussem
decussim		decussēs
decussīs
ablativedecusse
decussī		decussibus
vocativedecussisdecussēs

dĕcussis, is (also decus, i, a mutilated form used by the Agrimensores, p. 231, 243, and 265, ed. Goes.), m. decem-as.
I. The number ten: ex singularibus rebus, quae μονάδες apud Graecos dicuntur perficitur decussis, Vitr. 3, 1 (cf. the art. as, no. I.).—Hence, * decussis sexis, or in one word, dĕcussissexis, the number sixteen, Vitr. 3, 1, 8.—
B. Because the Roman numeral sign for ten was X, decussis was used to denote the intersection of two lines in the form of a cross: regula figitur in primo decussis puncto, Vitr. 10, 11; Plin. 18, 34, 77, § 331. Cf. decusso and its derivatives.—
II. (Acc. to as, no. II.) Ten asses; as a Roman coin, a ten-as piece, Varr. L. L. 5, § 170; Lucil. ib. 9, § 81 Müll.; Stat. Silv. 4, 9, 9; Fest. p. 237, 20 Müll.

Origins

From decem and as.

Descendants
  • Italiandecusse
  • Portuguesedecusse

In the Academy Smith's classical dictionaries

AntiquitiesDecussisDecussis ten asses, as a Roman coin a ten as piece, struck after the reduction of the weight of the as, but rarely found. [As.] The name occurs in the…

Quick answers

What does decussis mean in Latin?
decussis, a noun, means “ten (number); a coin worth ten asses; intersection of two lines in form of a cross”.
What is the genitive of decussis?
The genitive singular is decussis. decussis is masculine, third declension.
How do you pronounce decussis?
In classical Latin, [dɛˈkʊs.sɪs]; in ecclesiastical (church) Latin, [deˈkus.sis].