Efstathia is a modern Greek female given name, derived from the medieval Eustathia, which is the feminine form of Eustathios. The name ultimately traces back to the Latinized Eustathius, from the Greek εὐσταθής (eustathes) meaning "stable, well-built." This compound itself is formed from εὖ (eu) "good" and ἵστημι (histemi) "to stand." Thus the name conveys the sense of being steadfast or firmly established.Etymology and HistoryThe name belongs to a Greek onomastic tradition rooted in classical virtues. While Efstathia is the modern standardized form, it remains uncommon even in Greece, Eustace being more widespread internationally. The closest English equivalents include Eustacia and the diminutive Stacia.Religious and Cultural ContextThe related male name Eustathios was borne by several early saints. Notably, a 2nd-century martyr sometimes identified with Saint Eustace, though the traditions are complex.Meaning: "stable, well-built"Origin: GreekType: Female given nameUsage region: Modern Greece