The pronunciation in Classical Arabic is reconstructed to have been [ɡʲ] or [ɟ] (or perhaps both dialectically); it is cognate to [ɡ] in most other Semitic languages, and it is understood to be derived from that sound in Proto-Semitic.
It has experienced extensive change in pronunciation over the centuries and is pronounced at least six different ways across the assorted varieties of Arabic.
Thus, the class 7 noun prefix *kɪ̀- appears in e.g. Zulu as isi-, Sotho as se-, Venda as tshi- and Shona as chi-.
In the High German consonant shift, voiceless stops /p, t, k/ spirantized to /f, s, x/ at the end of a syllable.
Assibilation occurs without palatalization for some speakers of African American Vernacular English in which /θ/ is alveolarized to /s/ when it occurs at the end of a syllable and within a word before another consonant, leading to such pronunciations as the following:[1] The slang zaddy in African-American Vernacular English popularized to American English by Ty Dolla Sign's eponymous song may have been formed by analysis of an assibilated /d/ phoneme preceding /æ/ in the first syllable of daddy by the subject girl in question who "wanna come to Cali / brown skin, from Miami".
[2] In Proto-Greek, the earlier combinations *ty, *thy and *dy assibilated to become alveolar affricates, *ts and *dz, in what is called the first palatalization.
Most dialects of Quebec French apply a more recent assibilation to all dental plosive consonants immediately before high front vowels and associated semivowels, so that the sequences /di dj dy dɥ ti tj ty tɥ/ become pronounced /dzi dzj dzy dzɥ tsi tsj tsy tsɥ/ respectively.