assiduous

Mane (Îngilîzî)

Hard-working, diligent or regular (in attendance or work); industrious.

Hevwate

diligent

industrious

sedulous

painstaking

hardworking

persevering

hard-working

studious

active

zealous

laborious

careful

tireless

keen

persistent

avid

hardy

heavy

mindful

strenuous

striving

tough

unfailing

unflagging

unswerving

untiring

vehement

willing

enhusiastic

ardent

arduous

attentive

busyness

challenging

consistent

constant

devout

dogged

eager

earnest

exacting

fervid

formidable

hard

Werger

assidu

assiduo

asiduo

ijverig

fleißig

επιμελής

assíduo

naarstig

vlijtig

çalışkan

diligente

aplicado

emsig

diligent

Wekî (IPA) tê bilêvkirin

/əˈsɪdjuːəs/

Etîmolojî (Îngilîzî)

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.