Voiced alveolar lateral fricative
A pharyngealized voiced alveolar lateral fricative  is reconstructed to be the ancient Classical Arabic pronunciation of the Arabic letter . (This means that linguists do not know how the letter was actually pronounced. However, by looking at modern languages, they think that this is how it was pronounced in the ancient language.) Today, the letter is pronounced in Modern Standard Arabic as a pharyngealized voiced coronal stop. This sound can be either alveolar  or denti-alveolar .