withy

Withy is a word with several synonyms. In its broadest use, it is simply another word for "willow," but it can also be used for a particular category of willows which are also known by the name osier. Additionally, the word withe can be substituted for the "flexible slender twig or branch" sense of withy. Osier entered English from medieval French, whereas willow, withy, and withe all have their origins in Old English. Willow comes from welig; withy comes from wīthig; and withe comes from withthe, a word indirectly related to wīthig.