only 1 use
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- Mrs. Cutter painted china so assiduously that even her wash-bowls and pitchers, and her husband's shaving-mug, were covered with violets and lilies.Book 2 — The Hired Girls (62% in)
assiduously = diligently and persistently
There are no more uses of "assiduous" in My Antonia.
Typical Usage (best examples)