We break down what Rumi and Sir Carter's names mean from a historical point.

With the reveal of Rumi and Sir Carter on Instagram, Beyoncé not only gave fans something to be joyous about, but also something to Google. Many are wondering what the distinct names mean, especially after the couple filed trademarks on them.

As reported by TMZ, the company run by Bey and Jay that owns the trademarks to their names filed legal docs Monday, June 26 —right around the time the twins went home— to secure rights to the names Rumi Carter and Sir Carter. The docs are filed by the same company that filed for a Blue Ivy trademark earlier this year.

Sir Carter and Rumi 1 month today. 🙏🏽❤️👨🏽👩🏽👧🏽👶🏾👶🏾

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Japanese in origin, the name Rumi is said to mean "beauty, flow, lapis lazuli", according to Nameberry. As art and literature lovers, JAY-Z and Beyoncé may have given the name to their child as a nod to 13th century Muslim mystic and poet, Jalāl ad-Dīn Muhammad Rūmī whose most famous poem, "The Diver's Clothes Lying Empty" has inspired many modern literary works. 

The English word Sir is a designation of great contributions or chivalry given by the Order of the British Empire. Typically bestowed after years of service by the Queen of England —to notables like Sir Elton John or Sir James Paul McCartney— it would only make sense for Queen Bey to give the honor to her child.

Nothing less than royalty, for the Carters!