What does the name William mean?

Question

and does Billy mean anything too?

Answer 1

william was the name of a number of English kings

billy is a kind of container for boiling water

Answer 2

William means "protector"

Billy means ?? all i found was that its from the name William

Answer 3

The name of the Prince of Wales' eldest son means "desired helmet."

http://www.thinkbabynames.com/1/William

says:"The boy's name William \wi(l)-liam\ is pronounced WIL-yum. It is of Old German origin, and its meaning is "will helmet, protection". For a long time after the Norman conquest in AD 1066, three out of four English boys were given some form of the conqueror's name, William. Short forms and variants came into being with a common basic meaning of "will", "determined", or "resolute". William has remained a royal name in the UK for nearly one thousand years. The firstborn son of the current Prince of Wales is named William. Wilhelm is a German form; actor Willem Dafoe has made the Dutch form familiar since the 1980s. See also Willard. Playwright William Shakespeare; actors William Hurt, Billy Crudup, Bill Pullman; film director Wim Wenders; poet William Blake; author William Faulkner; US Presidents William H. Harrison, William H. Taft, William McKinley; Bill Clinton.

William has 34 variant forms: Bill, Bille, Billie, Billy, Guglielmo, Guillaume, Guillermo, Liam, Vilhelm, Villem, Wilek, Wiley, Wilhelm, Wilhelmus, Wilkes, Wilkie, Wilkinson, Will, Willem, Willhelmus, Willi, Williams, Williamson, Willie, Willis, Willkie, Wills, Willson, Willy, Wilmer, Wilmot, Wilmott, Wilson and Wim."

The diminutive "Billy" has no separate meaning.