English

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Etymology

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Latin rubidus

Noun

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rubidus (plural rubiduses)

  1. A butterfly, hybrid between the viceroy (Limenitis archippus) and the red-spotted purple (Limenitis arthemis astyanax).

Latin

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Etymology

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From Proto-Indo-European *h₁rewdʰ- (red) +‎ -idus. Related to rubeō (to be red), but the different ablaut grades suggest that the adjective is not directly derived from the stative verb.[1]

Pronunciation

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Adjective

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rūbidus (feminine rūbida, neuter rūbidum); first/second-declension adjective

  1. dark red
  2. (of bread, precise meaning uncertain) red-brown (or) twice-baked (or) partially baked

Declension

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First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative rūbidus rūbida rūbidum rūbidī rūbidae rūbida
Genitive rūbidī rūbidae rūbidī rūbidōrum rūbidārum rūbidōrum
Dative rūbidō rūbidō rūbidīs
Accusative rūbidum rūbidam rūbidum rūbidōs rūbidās rūbida
Ablative rūbidō rūbidā rūbidō rūbidīs
Vocative rūbide rūbida rūbidum rūbidī rūbidae rūbida

Synonyms

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References

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Further reading

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  • rubidus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • rubidus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.