sedulous

sedulous

[sej-uh-luhs]
adjective
1.
diligent in application or attention; persevering; assiduous.
2.
persistently or carefully maintained: sedulous flattery.

Origin:
1530–40; < Latin sēdulus, adj. derivative of the phrase sē dolō diligently, literally, without guile; replacing sedulious (see sedulity, -ous)

sedulously, adverb
sedulousness, noun
unsedulous, adjective
unsedulously, adverb
unsedulousness, noun


1. constant, untiring, tireless.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
sedulous (ˈsɛdjʊləs)
 
adj
constant or persistent in use or attention; assiduous; diligent
 
[C16: from Latin sēdulus, of uncertain origin]
 
sedulity
 
n
 
'sedulousness
 
n
 
'sedulously
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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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, © 2010 Douglas Harper
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