Borrowed from Persian هرمز (hurmuz /hormoz), from a stage between Classical Persian هُرْمُز (hurmuz) and Modern Iranian Persian هُرْمُز (hormoz), historically mediated through Portuguese Ormuz. Doublet of Ahura Mazda and Aramazd. More information The mixed‐vowel English historical spelling reflects a complex intersection of Renaissance exploration and English transliteration: * The Portuguese ‘O’: The Portuguese spelling Ormuz (often Ormus in early modern European texts) was established during their 16th‐century occupation of the island. Because the stress in the early modern Persian source IPA⁽ᵏᵉʸ⁾: /hurˈmuz/ falls on the final syllable, the unstressed first vowel had likely already laxed and lowered in spoken Safavid Persian—a shift accelerated by the phonetic environment of the surrounding consonants /h/ and /r/. The Portuguese accurately recorded this phonetic reality with a laxer ‘o’, while their native Romance phonology naturally discarded the foreign initial aspirate /h/. * The English ‘H’ and ‘u’: The initial ‘H’ was restored by 17th‐century English and Italian writers (such as Pietro della Valle and Samuel Purchas) attempting to closer approximate the native Arabic and Persian aspiration, grafting it onto the established Portuguese base. The English retention of the second vowel (‘u’) from the Portuguese orthography serendipitously reflected not only the Classical Persian ḍamma (the short ‘u’ vowel marker in هرمز), but also the historically attested variant spelling هرموز (hormūz), which employs the letter waw to explicitly denote a long ‘u’. This transliteration persisted in English regardless of how the vowel lowered to ‘o’ in contemporary spoken Iranian Persian.

Hormuz Strait • Strait of Hormuz • Straits of Hormuz • Hormuz Island • Island of Hormuz • Hormuz District • District of Hormuz • Qalʿeh-ye Hormoz • Hormozabad