The phrase "a newfound thing" is correct and usable in written English.
It can be used to describe something that has recently been discovered or realized.
Example: "After months of research, she finally stumbled upon a newfound thing that could revolutionize the industry."
Alternatives: "a recent discovery" or "a newly found concept".
I had a newfound appreciation for things like my gators – the funny looking bits of fabric hikers wear over their shins and boots – which protected my legs from scratches, mud and most importantly, snakes (apparently, I walk faster after seeing a snake).
Benefiting from a newfound appetite for all things digital, the world's largest chipmaker has just posted the best quarterly result in its 42-year history, boasting a profit of $3 billion on revenues of nearly $11 billion.
But in his golden years he's become well-loved for "Kids Say the Darndest Things" and a newfound love of sweatshirts.
While most media critics can dissect direction, acting, writing, and cinematography very well, hearing from experts about their take on the reliability of the way their jobs are represented often gives me a newfound appreciation (or dislike) for the thing I'm watching.
In this context, the current graduation and completion rate at America's colleges and universities should ignite a newfound sense of urgency to turn things around.
Running things at work gives April a newfound confidence and a realization that she doesn't have to act like CEO Jordan to be respected.
The only thing I gained from this experiment was a newfound sense of pity for people who stretch this process out over their entire lives.
She advises partners who have a newfound passion for the issue to change only a few things at a time and provide lots of explanation.
I had a newfound empathy for women who had to deal with such things on a regular basis.
Moreover, the dollar's recent strength combined with a newfound aggressiveness by foreign central banks would seem to portend better things ahead for Europe, Japan and China.
