city of Harar. Ge'ez remains the liturgical language for certain groups of Christians in Ethiopia and in Eritrea. Phonology The phonologies of the attested Semitic languages are presented here from a comparative point of view. See Proto-Semitic language#Phonology for details on the phonological reconstruction of Proto-Semitic used in this article. The reconstruction of Proto-Semitic (PS) was originally based primarily on Arabic, whose phonology and morphology (particularly in Classical Arabic) is very conservative, and which preserves as contrastive 28 out of the evident 29 consonantal phonemes. with and merging into Arabic and becoming Arabic . Note: the fricatives *s, *z, *ṣ, *ś, *ṣ́, *ṱ may also be interpreted as affricates (/t͡s/, /d͡z/, /t͡sʼ/, /t͡ɬ/, /t͡ɬʼ/, /t͡θʼ/), as discussed in . This comparative approach is natural for the consonants, as sound correspondences among the consonants of the Semitic languages are very straightforward for a family of its time depth. Sound shifts affecting the vowels are more numerous and, at times, less regular. Consonants Each Proto-Semitic phoneme was reconstructed to explain a certain regular sound correspondence between various Semitic languages. Note that Latin letter values (italicized) for extinct languages are a question of transcription; the exact pronunciation is not recorded. Most of the attested languages have merged a number of the reconstructed original fricatives, though South Arabian retains all fourteen (and has added a fifteenth from *p > f). In Aramaic and Hebrew, all non-emphatic stops occurring singly after a vowel were softened to fricatives, leading to an alternation that was often later phonemicized as a result of the loss of gemination. In languages exhibiting pharyngealization of emphatics, the original velar emphatic has rather developed to a uvular stop . Note: the fricatives *s, *z, *ṣ, *ś, *ṣ́, *ṱ may also be interpreted as affricates (/t͡s/, /d͡z/, /t͡sʼ/, /t͡ɬ/, /t͡ɬʼ/, /t͡θʼ/). Notes: Proto-Semitic was still pronounced as in Biblical Hebrew, but no letter was available in the Early Linear Script, so the letter ש did double duty, representing both and . Later on, however, merged with , but the old spelling was largely retained, and the two pronunciations of ש were distinguished graphically in Tiberian Hebrew as שׁ vs. שׂ < . Biblical Hebrew as of the 3rd century BCE apparently still distinguished the phonemes and from and , respectively, based on transcriptions in the Septuagint. As in the case of , no letters were available to represent these sounds, and existing letters