William means «resolute protector», a trait that is particularly appealing to ladies. This has given the men’s plant of the same name the motto «Everybody's Darling».

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William is a first name of Germanic origin, which became very popular after the Norman conquest of England in 1066 and remained so until modern times. Well-known namesakes are: Prince William Duke of Cambridge; actor and Oscar-winner William Bradley Pitt, called Brad Pitt; and William Shakespeare.