assiduous

Definition

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

Etymology

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.

Example Sentences

• "He was officious in the right time and place, quiet as a lamb when his patron seemed inclined to study or to muse, active and assiduous to assist or divert him whenever it seemed to be wished."
• "He died after three weeks' illness, during which Mrs. Penniman, as well as his daughter, had been assiduous at his bedside."
• "A good deal of assiduous attention had enabled Henry to win this place in her affections."