Ruby is a feminine given name drawn directly from the name of the precious gemstone, the deep red variety of corundum. The word ruby ultimately derives from Latin rubeus, meaning "red." As a traditional birthstone for July, the gem has long been associated with passion, protection, and prosperity. The name entered use as a given name in the 16th century, part of a broader trend of adopting jewel names during the English Renaissance.Etymology and GemstoneThe English word ruby comes via Old French rubi from Latin rubeus ("red"). The gemstone itself is a variety of corundum (aluminum oxide) colored red by the presence of chromium. Along with amethyst, sapphire, emerald, and diamond, ruby is counted among the traditional cardinal gems. Historically, some stones called rubies—such as the Black Prince's Ruby in the British Imperial State Crown—were later identified as red spinels, once known as "Balas rubies."Cultural and Notable AssociationsBecause no extensive Wikipedia article on individuals named Ruby is included in the source data, common general-knowledge bearers are noted: Early 20th-century uses include Ruby Keeler, an American actress and dancer, and Ruby Dee, an African-American actress and activist. The name also appears in popular culture, such as the character Ruby Tuesday, a name later used by the rock band The Rolling Stones for their 1967 song. Literature and film have featured Rubies, and the name symbolizes youthful elegance and natural beauty.Variants and DerivationsRelated forms include the variant Rubye and cross-cultural adaptations such as Rubina in Portuguese, Rubena in Esperanto, and Rubi in Slovene. The gemstone etymology often leads to nicknames like "Rube" or "Ruby."Meaning: Simply from the name of the precious gemstone, derived from Latin rubeus "red"Origin: English usage, 16th centuryType: Feminine first name, jewel nameRegions: Primarily English-speaking countries