<em>A suffix</em> is a morpheme or words added at the end of the word to form a new word or change the meaning of the word.
Example, with the suffix -etic (means relating to), an athlete is changed into athletic and energy is changed into energetic which changes the meaning of the word.
Hence, a suffix which means the process of using an instrument to examine is -scopy
Example, bioscopy, and microscopy.
The best way to describe language divergence is as when a language breaks down and will eventually form two different languages.
Alliteration and assonance i think