The term 'Cousin of Mead' can be solved by the three letter word ALE. ALE is a type of beer that is brewed using a warm fermentation method, resulting in a sweet, full-bodied and fruity taste. It is made from malted barley, hops, water and yeast. ALE has been around for centuries and is one of the oldest styles of beer. It is closely related to mead, which is an alcoholic beverage made from honey, water and yeast.