The word 'starlet' is a modern English compound formed by attaching the diminutive suffix '-let' to the noun 'star'. The core noun 'star' has ancient Proto-Indo-European roots in 'h₂stḗr', which evolved into the Proto-Germanic 'sternǭ' and eventually into the Old English 'steorra'. Its meaning expanded metaphorically from a celestial body to denote a person of brilliant fame or celebrity by the 1820s. The suffix '-let', borrowed into Middle English from Old French, specializes in forming nouns that imply a smaller or younger version of the base word. Thus, 'starlet' literally means "a little star", first applied in the early 19th century to small stars and then, by the 1910s, to young actresses being promoted as potential major celebrities, perfectly capturing the aspirational and diminutive nature of their early careers.

Structure: star (celestial body/celebrity) + let (diminutive suffix) - star: From Old English 'steorra', of Germanic origin; related to Dutch 'ster', German 'Stern'. Functions as the core noun, denoting a celestial body or a famous performer. - let: From Old English '-lǣtan' (to permit), but as a suffix, it often comes from Middle English '-let', a borrowing from Old French '-elet', a double diminutive. In this word, it functions as a diminutive suffix meaning "a small or lesser kind of".