Added 30 September 2026
assiduous
/əˈsɪdjuːəs/ adjective
Latin root: assiduus Wiktionary
adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about assiduous at Wordnik → Where our words come from →
- Hard-working, diligent or regular (in attendance or work); industrious.
Origin
A learned borrowing from Latin assiduus, from assidere (“to sit down to”), from ad- (“to”) + sedere (“to sit”). Compare sedulous. Cognate (via assidere) to assess.
From Wiktionary, via Kaikki.org (CC BY-SA)