Sedulous
SED'ULOUS, adjective. [Latin sedulus, from the root of sedeo, to sit; as assiduous from assideo.] Literally, sitting close to an employment; hence, assiduous; diligent in application or pursuit; constant, steady and persevering in business or endeavors to effect an object; steadily industrious; as the sedulous bee.
What signifies the sound of words in prayer, without the affection of heart, and a sedulous application of the proper means that may lead to such an end? L'Estrange.