Evolve
Acceleration means change in speed over time.
evolution
No. It is a word that means the gradual change over time of something, such as human evolution over thousands of years.
Total
A word that means something that doesn't change is "immutable." This term is often used in various contexts, including philosophy and science, to describe something that remains constant and unaltered over time. Other synonyms include "unchangeable" and "fixed."
The word root that means change is "morph."
metamorphosis
invade
o'er is Old English for the word "over" which means through out a period of time.
I believe you are looking for the word climate.
Long time = evolution. Short time = mutation.
The Latin word for change is "mutatio."