Question

what do the words partial, palatial, and potential have in common?
they have the same prefix.
they have the same suffix.
they have similar meanings.
they have the same word root.

Explanation:

Examine the structure of the words. "partial", "palatial", and "potential" all end with the suffix "-ial". They do not have the same prefix, similar meanings, or the same word - root.

Answer:

They have the same suffix.