English Edit

Etymology Edit

From Latin vitrum.

Noun Edit

vitrum (plural vitra)

  1. (obsolete) Glass; a glassy material.
    • 1665, Robert Hooke, Micrographia:
      I imagine it to be some small parcel of the Steel, which by the violence of the motion of the stroke […] is made so glowing hot, that it is melted into a Vitrum, which by the ambient Air is thrust into the form of a Ball.

Latin Edit

Etymology Edit

Nominalised from Proto-Indo-European *wed-ro- (literally water-like),[n 1] from the root *wed- (water).[1][2] For the semantic development compare Persian آبگینه(âbgina, glass). The plant and its dye were named after the color of glass in antiquity.

Pronunciation Edit

Noun Edit

vitrum n (genitive vitrī); second declension

  1. glass
    Synonym: hyalus
    Mihi dicendum est de materia, ex qua vitrum conficitur.
    I must talk about this material, from which glass is produced.
  2. dyer's woad, a plant used for dying blue (Isatis tinctoria)
    Synonyms: glastum, isatis
  3. woad, a blue dye used by the Britons made from that plant

Declension Edit

Second-declension noun (neuter).

Case Singular Plural
Nominative vitrum vitra
Genitive vitrī vitrōrum
Dative vitrō vitrīs
Accusative vitrum vitra
Ablative vitrō vitrīs
Vocative vitrum vitra

Derived terms Edit

Descendants Edit

(See also the descendants of vitreus, which seems to be the source of mass nouns meaning 'glass' in a number of West Iberian languages.)

Notes Edit

  1. ^ Both the shift of PIE *-dr- to Latin -tr- (cf. lutra, uter) and of *we- to vi- (cf. vigeō, vitulus) are expected.

References Edit

  1. ^ De Vaan, Michiel (2008), “vitrum”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 684–685
  2. ^ Sihler, Andrew L. (1995) New Comparative Grammar of Greek and Latin, Oxford, New York: Oxford University Press, →ISBN, § 223.5, page 212

Further reading Edit

  • vitrum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • vitrum”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • vitrum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
  • vitrum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette
  • vitrum”, in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
  • vitrum”, in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin

Old Norse Edit

Adjective Edit


  1. inflection of vitr:
    1. positive degree strong masculine dative singular
    2. positive degree strong/weak dative plural

Noun Edit


  1. indefinite dative plural of vitra

Verb Edit


  1. first-person plural present indicative/imperative active of vitra