In Sanskrit phonology, visarga (IPA: [ʋisɐrɡɐ(hɐ)]) is the name of the voiceless glottal fricative, written in Devanagari as ⟨ः⟩ /h/. It was also called, equivalently, visarjanīya by earlier grammarians. The word visarga (Sanskrit: विसर्ग) literally means "sending forth, discharge". Visarga is an allophone of /r/ and /s/ in pausa (at the end of an utterance). Since /-s/ is a common inflectional suffix (of nominative singular, second person singular, etc.), visarga appears frequently in Sanskrit texts. In the traditional order of Sanskrit sounds, visarga and anusvāra appear between vowels and stop consonants. The precise pronunciation of visarga in Vedic texts may vary between Śākhās. Some pronounce a slight echo of the preceding vowel after the aspiration: aḥ will be pronounced [ɐhᵄ], and iḥ will be pronounced [ihⁱ]. Visarga is not to be confused with colon.
Types The visarga is commonly found in writing, resembling the punctuation mark of colon or as two tiny circles one above the other. This form is retained by most Indic scripts. According to Sanskrit phonologists, the visarga has two optional allophones: the jihvāmūlīya (जिह्वामूलीय, the velar visarga) and the upadhmānīya (उपध्मानीय, the labial visarga). The former may be pronounced before ⟨क⟩ and ⟨ख⟩, while the latter may be pronounced before ⟨प⟩ and ⟨फ⟩. Generally, jihvāmūlīya and upadhmānīya are not rendered distinctively from the visarga, though the respective glyphs ⟨ᳵ⟩ and ⟨ᳶ⟩ have occasionally been used in Devanagari for that purpose; sometimes, the ardhavisarga ⟨ᳲ⟩ (अर्धविसर्ग, 'half-visarga') is used for both. Similar glyphs are found in Brahmi, Kannada, Tibetan, Sharada, and Lantsa. Examples:
तव पितामहः कः or तव पितामहᳵ कः or तव पितामहᳲ कः tava pitāmahaẖ kaḥ? — 'who is your grandfather?' पक्षिणः खे उड्डयन्ते or पक्षिणᳵ खे उड्डयन्ते or पक्षिणᳲ खे उड्डयन्ते pakṣiṇaẖ khe uḍḍayante — 'birds fly in the sky' भोः पाहि or भोᳶ पाहि or भोᳲ पाहि bhoḫ pāhi — 'sir, save me' तपःफलम् or तपᳶफलम् or तपᳲफलम् tapaḫphalam — 'result of penances'
Other Brahmic scripts
Bengali In the Bengali script, the visarga is written as ঃ and is known as bisarga (বিসর্গ). In Bengali it represents a weak post-vocalic release rather than a clearly articulated /h/ sound. Although it originates from Sanskrit final r- and s-sounds, modern Bengali preserves it primarily as an orthographic element, with its phonetic value varying according to position and environment.
Phonetic behaviour When occurring medially within a word, the bisarga no longer produces a distinct aspiration; instead it tends to reinforce or lengthen the following consonant. Examples include দুঃস্বপ্ন or নিঃশ্বাস, where the bisarga historically reflects Sanskrit ः, but in Bengali the release is replaced by consonant strengthening or an increased sibilant effect. When occurring finally at the end of a word, the bisarga marks an etymological aspiration inherited from Sanskrit, but in contemporary Bengali it is realised only as a very faint breath or is silent. Forms such as তঃ or যঃ illustrate this weakened contrast. Overall, Bengali pronunciation treats the visarga not as an independent consonant but as a modifier whose audible effect ranges from minimal to null.
Visarga Sandhi In sandhi environments, the bisarga undergoes several regular transformations that depend on the nature of the following sound. These changes reflect its Sanskritic origins and are largely systematic in Bengali spelling, even when their phonetic effect is weak. Before vowels, the bisarga commonly yields র or produces an ও-glide, preserving the historical continuity of r-final forms (e.g. পুনরধিকার). Before sibilants and coronal or palatal stops, it assimilates to the following consonant as the appropriate sibilant—শ, ষ, or স—a process that accounts for forms such as নিঃচয় → নিশ্চয়. When followed by voiced consonants or semivowels, r-jāt bisarga typically appears as র, while s-jāt bisarga may produce an ও-transition; thus অন্তঃগত surfaces as অন্তর্গত. If the following consonant is র, the bisarga disappears entirely and the preceding vowel lengthens, as seen in নীরস. After the vowels ই or উ and before velar or labial stops, the bisarga may appear as ষ, producing forms such as নিষ্কাম. Some compounds retain the written bisarga without any phonological modification, as in মনঃক্ষুণ্ণ. In other cases, the bisarga may be lost without affecting adjacent sounds, as in অতএব from অতঃ + এব. As a whole, visarga sandhi in Bengali reflects historical Sanskritic patterns that are preserved orthographically even though their phonetic realisation is limited in modern speech.
Burmese In the Burmese script, the visarga (variously called ရှေ့ကပေါက် shay ga pauk, ဝစ္စနစ်လုံးပေါက် wizza nalone pauk, or ရှေ့ဆီး shay zi and represented with two dots to the right of the letter as း), when joined to a letter, creates the high tone.
Japanese
Motoori Norinaga invented a mark for visarga which he used in a book about Indian orthography.
Javanese In the Javanese script, the visarga, known as the wignyan (ꦮꦶꦒ꧀ꦚꦤ꧀), is represented by two curls to the right of a syllable as ꦃ: the first curl is short and circular, and the second curl is long. It adds a /-h/ after a vowel.
Kannada In the Kannada script, the visarga (which is called visarga) is represented with two small circles to the right of a letter ಃ. It adds an aḥ sound to the end of the letter. This script also has separate symbols for ardhavisarga absent in most other scripts, jihvamuliya, ೱ, and upadhmaniya, ೲ.
Khmer In the Khmer script, the visarga (known as the reăhmŭkh (រះមុខ; "shining face")) indicates an aspirated /ʰ/ sound added after a syllable. It is represented with two small circles at the right of a letter as ះ, and it should not be confused with the similar-looking yŭkôlpĭntŭ (យុគလពិន្ទុ; "pair of dots"), which indicates a short vowel followed by a glottal stop like their equivalent visarga marks in the Thai and Lao scripts.
Lao In the Lao script, the visarga is represented with two small curled circles to the right of a letter as ◌ະ. As in the neighboring related Thai script, it indicates a glottal stop after the vowel.
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