Pegon is an unconventional Arabic-based script used to write Javanese, Sundanese, and Madurese languages.

Science · Published 20 October 2026 Swipe more like this →

In short: Originating from the Javanese word for deviate, Pegon adapts the Arabic alphabet to represent sounds found in local languages but absent in Arabic. While it lacks a rigid standard, this flexible system has served as a vital tool for religious scholarship, diplomacy, and poetry across the Indonesian archipelago for centuries.

The Pegon script functions as an adaptation of the Arabic abjad, a system primarily focused on consonants. Because the phonology of Javanese, Sundanese, and Madurese differs significantly from Arabic, the script incorporates seven additional letters to capture native sounds. These characters are typically formed by adding dots to existing Arabic letter shapes. Because Pegon is not standardized, the placement and number of these dots often vary, reflecting a tradition that prioritizes functional communication over rigid orthographic uniformity.

A defining feature of Pegon is its handling of vowels. Unlike standard Arabic, which often omits short vowels, Pegon uses diacritics in combination with specific letters to fully represent the vowel systems of its host languages. This can range from 'full' vocalization in formal religious texts to 'bare' or gundhul writing, where diacritics are omitted for fluent readers who can recognize words by their consonant structure alone. This adaptability extends to complex linguistic features like consonant clusters, which are managed through specific epenthetic or prothetic markers.

The script's evolution continues today, particularly through religious institutions that have developed new teaching materials to expand its use to the Indonesian language. While it shares a lineage with the Jawi script used for Malay, Pegon remains distinct in its orthography and character set. Its historical depth is evidenced by manuscripts like the 1623 Masa'il al-ta'lim, written on mulberry bark paper. Today, it remains a living tradition, with ongoing efforts to encode its unique characters into digital standards like Unicode, ensuring that this centuries-old method of expression survives in the modern era.

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