ma'ruf

noun3

1. •
   A class of vowel used in various Arabic script languages, including Persian, Kurdish, and Urdu, among others.
2. •
   A vowel phoneme that is phonemically equivalent to a vowel in Classical Arabic.
3. •
   A semivowel, or other vocalic character, with a reading that is phonemically equivalent to its normal pronunciation in Classical Arabic.