The adjective nascent describes the birth or beginning of something, like a civilization, a trend, an idea, or an action. If your idea for a time machine is nascent, it needs a lot more work before you'll be ready to travel to ancient Egypt.
Imagine you’re in the future looking back at the first time you learned the definition of the word nascent. Your nascent efforts to use the word felt awkward, but you quickly felt comfortable with it, especially after you learned how to pronounce it: “NAY-sent.” Now you use the word all the time!