Root Word Study

_{Words, words, so many words!}

What do they mean?

Learners,

We need your help.  We can not understand who so many words are changing!

Why does "form" have "per" in front of it and "ance" behind it?
Why do so many words change - suddenly they have something different in the beginning or the end:

restrict turned into restriction
sense turned into nonsense
angle turned into triangle
enjoy turned into enjoyment

Help us find out what is happening!