The phrase "earnestly of" is grammatically correct and can be used in written English.
It means being sincere and serious about something. Example: She spoke earnestly of her dreams and aspirations, hoping to convince her parents to support her decision.
He spoke earnestly of protecting the environment and boosting national happiness.
Pretty 10-year-old Tory speaks earnestly of dancing "for God" and not "for the flesh".
Thomas spoke earnestly of "trying to make some noise in the N.B.A".
At the debate, each of the hopefuls praised Dean and spoke earnestly of organizing.
Prior to tipoff, Harrington spoke earnestly of letting the game come to him.
Managing this feat while stockmarket indices plummet and sober economists talk earnestly of meltdown is even more impressive.
Rhodes deals in the main with wan, passive, earnestly matter-of-fact men who go to their dooms with a sort of glum acceptance.
Then imagine those thousands of young people outside the convention hall who have arrived from long months of campaigning earnestly for reform of the party they see as an instrument of their future, as well as members of Black Lives Matter and other people of color for whom Rahm Emanuel is the incarnation of deceit and oppression.
We cannot trust the Congress to legislate earnestly on questions of race, Mr Scalia implied, because senators and representatives feel bound to uphold "racial entitlements" that their forebears have enacted.
An honorable B+ term paper of a movie: sober, scrupulous and earnestly respectful of its literary source.
"The Human Stain," directed by Robert Benton from a screenplay by Nicholas Meyer, is an honorable B+ term paper of a movie: sober, scrupulous and earnestly respectful of its literary source.
