# sedulous

> English word · Adjective · IPA /ˈsɛd͡ʒʊləs/

## Definitions
1. Of a person: diligent in application or pursuit; constant and persevering in business or in endeavours to effect a goal; steadily industrious.
2. Of an activity: carried out with diligence.

## Etymology
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).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sedulous