Semitic languages
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, and *ṱ may also be interpreted as affricates (/t͡s/, /d͡z/, /t͡sʼ/, /t͡ɬ/, /t͡ɬʼ/, and /t͡θʼ/).

Notes:

The following table shows the development of the various fricatives in Hebrew, Aramaic, Arabic and Maltese through cognate words:
detectable_content:number_placeholders[4], combination:repeat_prompt, length_constraints:number_words[81]