Boeat

The word boeat is the historical spelling of the modern Indonesian buat, written under the “Van Ophuijsen Orthography” system introduced by Dutch linguist Ch. A. Van Ophuijsen and officially implemented in 1901. Under this system, the vowel sound /u/ was consistently rendered as oe, transforming buat into boeat. This orthographic convention was widely applied across official texts, newspapers, literature, and administrative documents throughout the Dutch colonial period until the mid-twentieth century. Following Indonesia's declaration of independence, the government introduced the “Soewandi Spelling” or “Republican Spelling” in 1947, simplifying the orthography by replacing oe with u, thereby converting boeat back to buat. The word functions as a preposition of purpose or beneficiary, comparable in certain contexts to the word untuk. In classical Malay literature and colonial-era texts, boeat frequently appears alongside akan as a more formal marker of purpose or intent.