Noah Webster
Diligent
DILIGENT, adjective [Latin]
1. Steady in application to business; constant in effort or exertion to accomplish what is undertaken; assiduous; attentive; industrious; not idle or negligent; applied to persons.
Seest thou a man diligent in his business? He shall stand before kings. Provers 22.
2. Steadily applied; prosecuted with care and constant effort; careful; assiduous; as, make diligent search.
The judges shall make diligent inquisition. Judges 19:1.