All vowels may appear in initial position in both ST and LT, but there is one
major difference between LT and ST in that high short vowels (É i and
Ë u) when followed by a single consonant and the vowel Ç a,
are replaced by Í e and Ð o respectively. I.e., the high
vowels are lowered to mid-vowel position, if they occur in the first
syllable. (They may be preceded by a consonant, but are not required to be.)
This means that there are no words in ST that now begin with short high
vowels followed by a single consonant and the vowel Ç a or Ï
ai (which in ST usually is replaced by Í e).
Note that in these forms, LT final Ï ai's all become Í e.
Next: Final Position
Up: Tamil Vowels
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Initial Position
Harold_F.Schiffman