Intermewed describes a medieval practice that is currently viewed as:

Intermewed refers to an ancient method of keeping birds of prey during the molting season. This practice involved housing a hawk or falcon in a way that allowed it to molt without the pressures of hunting or active capture, typically in a large aviary or flight pen. Today, this method is recognized as outdated or archaic in the context of modern falconry, which has evolved with new techniques and training processes that are more efficient and humane.

The reason this practice is now regarded as archaic is tied to advancements in our understanding of avian biology and the development of best practices in animal husbandry. Falconry has progressed significantly, and while some elements of traditional practices remain, they have been adapted to better suit the needs of both the falconers and the birds. Therefore, the term intermewed is associated with historical methods that are no longer widely used or considered appropriate in contemporary falconry contexts.