ᴹAQ. syllabic initial [s] became [is]; [ṣ-] > [is-]

ᴹAQ. syllabic initial [s] became [is]; [ṣ-] > [is-]

Reference ✧ PE19/36

Order (02100)

Before 02200 initial [s] plus voiceless stops became voiceless spirants
Before 03500 ᴹQ. [sp], [sk] became [ps], [ks]

Related

Phonetic Rule Elements

[ṣ-] > [is-]

ᴱQ. syllabic [s] developed a vowel; [ṣ|ṣCʷ|ṣ̄|ẓ] > [is|usCʷ|as|iz]

Reference ✧ PE12/14 ✧ for example: siste < ᴱ✶sṣtē, mirde < ᴱ✶mẓđē

Phonetic Rule Elements

[ṣ] > [is]
[ṣCʷ] > [usCʷ]
[ṣ̄] > [as]
[ẓ] > [iz]

Phonetic Rule Examples

pṣt- > pist- ṣ > is ᴱ✶pṣt- > ᴱQ. piste ✧ PE13/163
pṣt- > pist- ṣ > is ᴱ✶pṣt > ᴱQ. piste ✧ PE14/58
sṣte > siste ṣ > is ᴱ✶sṣtē > ᴱQ. siste ✧ PE12/14
sṣte- > siste- ṣ > is ᴱ✶sṣt- > ᴱQ. histe ✧ PE13/163
sṣtʲ > sistʲ ṣ > is ᴱ√SṢT͡YṢ > ᴱQ. sist ✧ QL/86
ṣkʷe > uskʷe ṣCʷ > usCʷ ‽ᴱ√ṢQṢ > ᴱQ. USQE ✧ QL/98
pṣ̄tie- > pastie- ṣ̄ > as ᴱ✶pṣt > ᴱQ. pastie ✧ PE14/58
pṣ̄tʲe- > pastʲe- ṣ̄ > as ᴱ✶pṣt > ᴱQ. pastye ✧ PE14/58
sṣ̄tʲa > sastʲa ṣ̄ > as ᴱ√SṢT͡YṢ > ᴱQ. sastya ✧ QL/86
mẓðe > mizðe ẓ > iz ᴱ✶mẓđē > ᴱQ. mirde ✧ PE12/14