Definition of "passionately"

“The story of this adoption is, of course, the pivot round which all the circumstances of the mysterious tragedy revolved. Mrs. Yule had an only son, namely, William, to whom she was passionately attached ; but, like many a fond mother, she had the desire of mapping out that son's future entirely according to her own ideas. […]”

1905, Baroness Emmuska Orczy, chapter 1, in The Tragedy in Dartmoor Terrace‎

And it was while all were passionately intent upon the pleasing and snake-like progress of their uncle that a young girl in furs, ascending the stairs two at a time, peeped perfunctorily into the nursery as she passed the hallway—and halted amazed.

1907 August, Robert W[illiam] Chambers, chapter I, in The Younger Set, New York, N.Y.: D. Appleton & Company