Why was rēfringō prefixed with « re- »?

1. Where did the prefix re come from?
2. Can you add re to any verb?
3. What does the Latin prefix de mean?

Where did the prefix re come from?

From Latin re- (“again; back”).

Can you add re to any verb?

The prefix RE can be added to verbs, nouns, and adjectives. Verb REDO – I made a mistake in my experiment. I have to redo it.

What does the Latin prefix de mean?

from Latin, from dē (prep) from, away from, out of, etc. In compound words of Latin origin, de- also means away, away from (decease); down (degrade); reversal (detect); removal (defoliate); and is used intensively (devote) and pejoratively (detest)