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From sedeō. Confer with the similar senses in assiduus. Others refer it to sē- (without, apart from) +‎ dolus (deceit, guile).



sēdulus (feminine sēdula, neuter sēdulum); first/second declension

  1. diligent, industrious, zealous, unremitting, solicitous, assiduous, sedulous


First/second declension.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
nominative sēdulus sēdula sēdulum sēdulī sēdulae sēdula
genitive sēdulī sēdulae sēdulī sēdulōrum sēdulārum sēdulōrum
dative sēdulō sēdulō sēdulīs
accusative sēdulum sēdulam sēdulum sēdulōs sēdulās sēdula
ablative sēdulō sēdulā sēdulō sēdulīs
vocative sēdule sēdula sēdulum sēdulī sēdulae sēdula

Derived terms[edit]



  • sedulus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • sedulus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • sedulus in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français [Illustrated Latin-French Dictionary], Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • (ambiguous) to take great pains in order to..: studiose (diligenter, enixe, sedulo, maxime) dare operam, ut...