Here are some words that have the root word cycl-:
Cycle
Cyclone
Unicycle
Recycle
The prefix that can be added to "cycle" is "re-".
phcycle
The prefix you can add to charge is "re-," as in "recharge."
The adding a prefix to the word "add" would result in the word "postadd".
The correct prefix to add to "fashionable" is "un-", resulting in "unfashionable."
To add a prefix to the word "definitely," you could use "in-" to form "indefinitely."
You could add the prefix af- to it to make the word affluent.
In the word "inform", in- is a prefix. You could add the prefix mis- to it to get misinform.
The adding a prefix to the word "add" would result in the word "postadd".
Add (something) at the beginning as a prefix or introduction.
"Im" is a common prefix in itself, you don't add a prefix to a prefix.
Krebs
dinutrition
"Possibility" doesn't have a prefix. You could add the prefix im- to it to make the word impossibility.
cycle
A bicycle is a two wheeled cycle.A tricycle is a three wheeled cycle, and a unicycle is a single wheeled cycle. Therefore, the prefix means the number of wheels attached to a cycle.
"Social" doesn't have a prefix. You could add the prefix un- to it to make the word unsocial.
The current prefix is ex-. You could add the prefix in- to it to make the word inexcusable.
The current prefix is im-. You could add the prefix un- to it to make the word unimportant.