see witch hazel.
Examples from the Web for wych
The summer of 1914 was noted for a similar abundance of seed on the wych elm.Trees. A Woodland Notebook|Herbert Maxwell
The Wych Elm is a native of our country, and is also very common, but it occurs principally in the woods of the North.Field and Woodland Plants|William S. Furneaux
The philologists appear to be uncertain as to the origin and meaning of Wych, but it seems most probably a form of Witch.Wayside and Woodland Trees|Edward Step
The Scotch or wych elm is planted freely in parks and private grounds.Trees Worth Knowing|Julia Ellen Rogers
The broad-leaved or wych elm (Ulmus montana), indigenous to Scotland.The Lady of the Lake|Sir Walter Scott