My prefix prays a lot, My suffix has the key

Question

My prefix prays a lot,

My suffix has the key.

My infix is on the top,

I always like to copy.

Answer 1

I think the word is

'MONKEY'

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My prefix prays a lot,

'MONK'

My suffix has the key.

Literally 'KEY'

My infix is on the top,

Also literally 'ON'

I always like to copy.

A reference to Monkey see, monkey do which is a saying meaning to copy without knowing why.