Phonogramology (continued 2):

One branch of the phonographic (alphabetic) languages is called “Abujidas”, also known as syllabic alphabets, and alpha-syllables. Abujidas is a type of phonetic writing with consonants as the main body and vowels marked with additional symbols.  main features of this writing system are: consonants themselves have vowels, usually /a/, forming a syllable; other vowels are generally attached around consonants (possibly up and down) to replace the default vowels,  to change the pronunciation of syllables.  Abujidas write vowels as a modification of a base consonant symbol. They don’t have the capital or lower cases.

Abujidas doesn’t have initial, medial, or final forms like Arabic and Mongolian do, instead, every consonant letter is added with vowels. There is one letter per syllable. (Citations needed)

For example, Ge’ez script is used to write Amharic in Ethiopia and Tigrinya in Eritrea which became independent from Ethiopia in 1991. They all descend from Brahmin script in Northern India.

The scripts of India can be categorized into the northern branches (Bengali, Devanagari, Gujarati, Gurmukhi, and Tibetan) and the Southern branch(Kannada, Malayalam, Odia, Sinhala, Tamil, and Telugu). Several other South-East Asian countries also used abugidas (Burmese, Khmer, Lao, and Thai). 

The Sanskrit cultural circles of South and Southeast Asia commonly use vowel subscripts as their writing forms.

(To be continued)