William is a popular given name of an old Germanic origin. It became very popular in the English language after the Norman conquest of England in 1066, and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will, Willy, Bill, and Billy. A common Irish form is Liam. Scottish diminutives include Wull or Wullie. Female forms are Willa, Willemina, Willamette, Wilma and Wilhelmina.
