This is a variation of Abracadabra.

The words "notion", "thought" and "devolved" share a similar pattern.

Each of the three words consist of three groups of letters where the third group is formed by writing the first group in reverse order and the second group of letters is between them – and, each of the three groups consists of 2 or more letters.

None of the words can be palindromes, and:
None of the words can be plurals or proper nouns.

What is the longest word satisfying all the above conditions ?

Bonus Question:

For an extra challenge, find the longest word satisfying all the given conditions with the added proviso that none of the words can start with DE or RE.