Sire

Historically, Sire was a formal term for addressing male royalty, particularly a king. Sire can also mean "father" as both a noun and a verb.

Rarely given as a name until the mid-2010s, Sire is now given to over 100 baby boys each year. Sire fits alongside Duke and King in the growing trend of royal titles as baby names. Usher and Jenn Goicoechea named their son, born in October 2021, Sire Castrello.