The name Izzie, pronounced /ˈɪzi/, originated as a diminutive of Elizabeth and its Spanish variant Isabel—both of which ultimately derive from the Hebrew appellation Elisheba, signifying “God is my oath.” Over successive generations within Anglo-American onomastic practice, Izzie has transitioned from an affectionate pet form to an autonomous feminine given name, reflecting a broader trend toward informality coupled with etymological depth. Examination of United States Social Security Administration records indicates that Izzie has maintained a position among the top 1,000 female names since 2011, peaking at 29 registered births in 2022 (rank 915) and accounting for 14 occurrences in 2024 (rank 936), thereby demonstrating both modest popularity and remarkable consistency. Phonologically, the name comprises an initial high front unrounded vowel, a medial alveolar sibilant, and a terminal lax high front vowel—a configuration that facilitates clarity and ease of articulation in American English. In its technical characterization, Izzie thus exemplifies a nomenclatural evolution that balances historical resonance and contemporary informality in alignment with prevailing Anglo-American naming conventions.