I am earnestly desirous, then, my dear sir, that you should let the world into the traits of your genuine character, as civil broils nay otherwise tend to disguise or traduce it.
He being at Newcastle, forty miles below Philadelphia, heard there of me, and wrote me a letter mentioning the concern of my friends in Boston at my abrupt departure, assuring me of their good will to me, and that every thing would be accommodated to my mind if I would return, to which he exhorted me very earnestly.
There are no more uses of "earnest" in the book.
Show samples from other sources
Both sides were deeply in earnest, even passionate.
She has a casual, go-with-the-flow personality and doesn’t appreciate his earnestness.