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sedulous

 - 3 dictionary results

sed⋅u⋅lous

  [sej-uh-luhs]
Use sedulous in a Sentence
–adjective
1. diligent in application or attention; persevering; assiduous.
2. persistently or carefully maintained: sedulous flattery.
Origin:
1530–40; < L sēdulus, adj. deriv. of the phrase sē dolō diligently, lit., without guile; r. sedulious (see sedulity, -ous )

Related forms:
sed⋅u⋅lous⋅ly, adverb
sed⋅u⋅lous⋅ness, noun

Synonyms:
1. constant, untiring, tireless.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To sedulous
sed·u·lous   (sěj'ə-ləs)   
adj.  Persevering and constant in effort or application; assiduous. See Synonyms at busy.

[From Latin sēdulus, from sēdulō, zealously : sē, without; see s(w)e- in Indo-European roots + dolō, ablative of dolus, trickery (probably from Greek dolos, cunning; see del-2 in Indo-European roots).]
sed'u·lous·ly adv., sed'u·lous·ness, se·du'li·ty (sĭ-dōō'lĭ-tē, -dyōō'-) n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

sedulous 
1540, from L. sedulus "attentive, painstaking," probably from sedulo (adv.) "sincerely, diligently," from sedolo "without deception or guile," from se- "without, apart" (see secret) + dolo, ablative of dolus "deception, guile," cognate with Gk. dolos.
Online Etymology Dictionary, © 2001 Douglas Harper
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