LATIN DICTIONARYLexicon Latīnum
noun · femininethird declension

cassis1

cassis f (genitive cassidis)
Classical[ˈkas.sɪs]Ecclesiastical[ˈkas.sis]

Meaning

  1. femininea plumed metal helmet

Latīnē defined in Latin in our graded readers

Choosing the right word Döderlein's Latin Synonyms

Cassis · Galea · Cudo

Cassis, cassida (from κόττα), is a helmet of metal; galea (γαλέη), a helmet of skin, and properly of the skin of a weasel; cudo (κεύθων), a helmet of an indefinite shape. Tac. G. 6. Paucis loricæ; vix uni alterive cassis aut galea.

Declension

declension
formsingularplural
nominativecassiscassidēs
cassidae
genitivecassidis
cassidae		cassidum
cassidārum
dativecassidī
cassidae		cassidibus
accusativecassidem
cassidam		cassidēs
cassidās
ablativecassidecassidibus
vocativecassiscassidēs
cassidae

cassis, ĭdis (access. form cassĭda, ae, like chlamyda from chlamys, Prop. 3 (4), 11, 15; Verg. A. 11, 775; cf. Prob. II. p. 1473 P. Lind.; Charis. p. 80 P.; Prisc. p. 698 ib. Also Paul. ex Fest. p. 48, instead of cassilam, the reading should be cassidam), f. Etruscan, acc. to Isid. Orig. 18, 14, 1; cf. Müll. Etrusk. 1, p. 392; cf. Sanscr. khad, to cover, and Lat. castrum, casa,
I. a helmet, commonly of metal (as galea was of leather, Isid. Orig. 18, 14, 1; cf. Tac. G. 6), Plaut. Trin. 3, 2, 100; Caes. B. G. 7, 45; Ov. M. 12, 89; 13, 107: fracta, Juv. 10, 134: caelata, id. 11, 103.—But also promiscuously for galea, Ov. M. 8, 25 (cf.: aerea galea, Verg. A. 5, 490).—
b. Meton., war: sub casside sumere unguenta, Plin. 13, 3, 4, § 23: aetas patiens cassidis, Juv. 7, 33.

Origins

Perhaps from a Proto-Indo-European *kadʰ- (“to guard, cover, care for, protect”), and cognate with Proto-Germanic *hattuz (“hat”), whence English hat. Related to Etruscan 𐌂𐌀𐌔𐌔𐌉𐌔 (cassis).

Descendants
  • Italiancasside
  • Italiancassida
  • Byzantine Greekκάσσος
  • Hebrewקסדה
noun · masculinethird declension
cassis2
cassis m (genitive cassis)

Meaning

  1. masculinehunting net; snare; toil
  2. masculinespider web
  3. in pluralmasculinesnares; plots

Declension

declension
formsingularplural
nominativecassis
cassida		cassēs
cassidae, cassidēs
genitivecassis
cassidae, cassidis		cassium
cassidārum, cassidum
dativecassī
cassidae, cassidī		cassibus
cassidibus, cassidīs
accusativecassem
cassidam, cassidem		cassēs
cassīs, cassidās, cassidēs
ablativecasse
cassidā, casside		cassibus
cassidibus, cassidīs
vocativecassis
cassida		cassēs
cassidae, cassidēs

cassis, is, v. casses.

Origins

The origin is uncertain. Probably connected with catēna (“chain”). Pokorny derives from Proto-Indo-European *kat- (“to link or weave together”). Martirosyan connects cassis and catēna with Old Armenian ցանց (cʻancʻ, “casting-net”) and derives all from a Mediterranean substrate.

Quick answers

What does cassis mean in Latin?
cassis, a noun, means “a plumed metal helmet”.
What is the genitive of cassis?
The genitive singular is cassidis. cassis is feminine, third declension.
How do you pronounce cassis?
In classical Latin, [ˈkas.sɪs]; in ecclesiastical (church) Latin, [ˈkas.sis].