Esmerae is a rare feminine given name whose etymological roots appear to trace back to the Spanish smaragdus “emerald,” suggesting an implicit association with the gemstone’s qualities of clarity and renewal; in English-speaking contexts it may also reflect a modern coinage blending Esme and Rae, thereby reinforcing its dual heritage. Phonetically, it is realized in Spanish as es-meh-rah-eh (/es.me.ˈɾa.e/) and in English as ez-muh-ray (/ˈɛz.mə.reɪ/), each pronunciation embodying the name’s transatlantic trajectory. From an onomastic perspective, Esmerae’s usage in the United States remains exceptionally uncommon—recorded occurrences rose modestly from seven infants in 2020 (rank 949) to fourteen in 2024 (rank 936)—yet this slight upward trend denotes a growing, if still limited, embrace by parents seeking a name that combines technical precision in sound with a coolly sophisticated aesthetic. Despite its infrequency, the name’s intricate consonant-vowel pattern and gemstone connotation position it as a technically engaging choice for those valuing both phonological distinctiveness and culturally layered meaning.