Is "reserved" an adjective or verb in this example? [closed]

I need an answer about this sentence please:

We had a reserved seat.

Reserved in this sentence is a verb. I read that in a morphology book. My question is: how does this become a verb? I thought it was an adjective.


Solution 1:

Reserved is an adjective in this context.

From ODO:

Reserved - adjective - kept specially for a particular purpose or person:

a reserved seat