Select the INCORRECTLY spelt word.

The correct answer is Magnanimos.

Explanation:

Let's analyze the given options to find the incorrectly spelt word:

1. Magnanimos: This spelling is INCORRECT. The correct spelling is Magnanimous, which means generous or forgiving, especially towards a rival or less powerful person.

2. Fascination: This spelling is correct. It means the power to fascinate someone or the state of being fascinated.

3. Accompanied: This spelling is correct. It is the past tense of accompany, meaning to go somewhere with someone as a companion.

4. Psychology: This spelling is correct. It refers to the scientific study of the human mind and its functions.

Therefore, the word with the incorrect spelling is Magnanimos.