"Kench" primarily refers to a deep bin used for salting and preserving fish or animal skins. This definition has been used since the late 1700s.
However, the term "Kench" can also be a surname, with a possible Irish origin. It is also occasionally used as a given name.
There are several instances where "Kench" is used in a more modern context, like in the League of Legends character Tahm Kench, where it likely stems from the Hebrew word "ta'am" meaning "taste".