Added 9 October 2026
sedulous
/ˈsɛd͡ʒʊləs/ adjective
In Latin: sēdulus Wiktionary
adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about sedulous at Wordnik → Where our words come from →
- Of a person: diligent in application or pursuit; constant and persevering in business or in endeavours to effect a goal; steadily industrious.
- Of an activity: carried out with diligence.
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).
From Wiktionary, via Kaikki.org (CC BY-SA)