Characteristics
Some characteristics, which may not be present in all the scripts, are:
- Each consonant has an inherent vowel which is usually short 'a' (in Bengali, and Assamese, it is short 'รด' due to sound shifts). Other vowels are written by adding to the character. A mark, known in Sanskrit as a virama/halant can be used to indicate the absence of an inherent vowel.
- Each vowel has two forms, an independent form when not part of a consonant, and a dependent form, when attached to a consonant. Depending on the script, the dependent forms can be either placed to the left of, to the right of, above, below, or on both the left and the right sides of the base consonant.
- Consonants (up to 4 in Devanagari) can be combined in ligatures. Special marks are added to denote the combination of 'r' with another consonant.
- Nasalization and aspiration of a consonant's dependent vowel is also noted by separate signs.
- The traditional ordering can be summarized as follows: vowels, velar consonants, palatal consonants, retroflex consonants, dental consonants, bilabial consonants, approximants, sibilants, and other consonants. Each consonant grouping had four consonants (with all four possible values of voicing and aspiration), and a nasalised consonant.
Read more about this topic: Brahmic Scripts