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sedulous

se·du·lous

UK/ˈsɛd͡ʒʊləs/ US/ˈsɛdjʊ-/ uncommon

adjective

1.

marked by care and persistent effort

  • “her assiduous attempts to learn French”
  • “assiduous research”
  • “sedulous pursuit of legal and moral principles”
Synonyms
Similar

Origin

From Latin sēdulus (“diligent, industrious, sedulous; solicitous; unremitting; zealous”) + English -ous. Sēdulus is probably derived from sēdulō (“diligently; carefully; purposely; zealously”) (possibly from sē- (prefix meaning ‘without’) + dolō (ablative singular of dolus (“deceit, deception; evil intent, malice”), ultimately from Proto-Indo-European *del- (“to count, reckon”))) + -us (suffix forming adjectives).

Related words

Word family

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.