Rosetta Stone
Sanskrit and Tamil side by side: the same sounds in two scripts, and where their grammars end up alike even though the languages share no ancestor.
Characters
Sanskrit's Devanagari and Tamil's own script are unrelated in origin (see Tamil Characters). This page doesn't cover either script on its own; it lays the two side by side, sound by sound. Most of it lines up cleanly. Where it doesn't, the gap is usually the interesting part: a sound that one language marks and the other doesn't, or a distinction that one keeps and the other merges. Every correspondence here is already verified elsewhere on this site (Sanskrit in Tamil Script checks it against real chant text). This page puts it all in one table.
Vowels
| Tamil | Sound | Sanskrit |
|---|---|---|
அ | a | अ |
ஆ | ā | आ |
இ | i | इ |
ஈ | ī | ई |
உ | u | उ |
ஊ | ū | ऊ |
ஐ | ai | ऐ |
ஔ | au | औ |
Eight of Tamil's twelve vowels map onto Devanagari one letter for one letter, with no adjustment in either direction.
Tamil keeps a distinction Sanskrit doesn't have
Sanskrit keeps four vowels Tamil doesn't have
Sanskrit's ए and ओ are always long. There is no short e or short o to tell them apart from, so one letter each is enough. Tamil's short e/o are separate sounds from long ē/ō, so it needs both எ and ஏ, and both ஒ and ஓ. On this one point Tamil's vowel inventory is finer than Sanskrit's, which is worth noticing because almost everywhere else on this page it is Sanskrit that distinguishes more.
Where consonants line up exactly
The nasals are the cleanest match on this page. Tamil's mellinam row has five places that match Sanskrit's five nasal consonants one for one, with no changes in either direction:
| Tamil | Sound | Sanskrit |
|---|---|---|
ங | ṅa | ङ |
ஞ | ña | ञ |
ண | ṇa | ण |
ந | na | न |
ம | ma | म |
The semivowels and the sibilants (the sibilants via Grantha) match just as cleanly:
| Tamil | Sound | Sanskrit |
|---|---|---|
ய | ya | य |
ர | ra | र |
ல | la | ल |
வ | va | व |
ஶ Grantha | śa | श |
ஷ Grantha | ṣa | ष |
ஸ Grantha | sa | स |
ஹ Grantha | ha | ह |
Where Tamil uses one letter for four Sanskrit sounds
Native Tamil doesn't distinguish voiceless from voiced stops, or unaspirated from aspirated ones (see Tamil Characters). To write Sanskrit precisely, Tamil uses the plain letter for the voiceless sound and adds a superscript number for the other three. Sanskrit in Tamil Script checks this against real chant text:
| Plain | + ² | + ³ | + ⁴ | |
|---|---|---|---|---|
| Velar | க ka / क |
க² kha / ख |
க³ ga / ग |
க⁴ gha / घ |
| Retroflex | ட ṭa / ट |
ட² ṭha / ठ |
ட³ ḍa / ड |
ட⁴ ḍha / ढ |
| Dental | த ta / त |
த² tha / थ |
த³ da / द |
த⁴ dha / ध |
| Labial | ப pa / प |
ப² pha / फ |
ப³ ba / ब |
ப⁴ bha / भ |
Palatals are the exception. ja already has its own Grantha letter (ஜ) instead of a modified ச, so the four-way க/க²/க³/க⁴ pattern above doesn't carry over cleanly to ச/छ/ज/झ. They are left out here for that reason, not by oversight.
Sounds only one side has
Beyond the vowels noted above, each script has consonants with no real counterpart in the other:
| Tamil only | ழ ḻa — retroflex approximant, the sound in "Tamiḻ" itself |
|---|---|
| Tamil only | ள ḷa — retroflex lateral |
| Tamil only | ற / ன ṟa / ṉa — Tamil's 6th ("alveolar") place, alongside velar/palatal/retroflex/dental/labial |
| Sanskrit only | ळ ḻa — Vedic-only, the intervocalic allophone of ड (see Sanskrit Characters) |
Sanskrit's Vedic-only ळ and Tamil's ழ்/ள் are not the same sound and don't share an origin. It is still curious that both languages ended up with extra retroflex consonants beyond what their core systems predict. Some linguists trace Sanskrit's retroflex series in general to early contact with Dravidian languages, though the details are still debated. Nothing here claims that ळ and ழ்/ள் are historically the same letter.
Grammar & Syntax
Sanskrit (Indo-European) and Tamil (Dravidian) belong to two unrelated language families. Nothing here claims a common ancestor for their grammars, any more than for their scripts. But two languages that have shared a subcontinent for three thousand years pick up real structural similarities, along with a few that look like coincidence and a few real, principled differences. Each language's mechanics are covered in full on Sanskrit Grammar and Tamil Grammar. This section sets the two side by side.
Where the two converge
Same default word order, same reason
No verb "to be" in the present
Case does what English prepositions do
Sandhi happens at every seam, in both
One long "word" standing in for a whole clause
Relative clauses without a relative pronoun
Where they part ways
Two structural differences matter too much to hide behind surface similarity. Each is covered in full on that language's own grammar page and restated here only for contrast: