ᴱQ. voiceless spirants became stops before stops, [s] or [z]; [{ɸxxʷθʲ}{ptkbdgsz}] > [{pkkk}{ptkbdgsz}]
References ✧ PE12/18, 20-21
Order ()
| After | 01100 | [θ] became [s] | ||
| Before | [tʲ], [kʷ] became [t], [k] before [t], [s] | |||
| Before | 01400 | [ɸ] usually became [f] | 
Related
Phonetic Rule Elements
|  | > |  | ✧ PE12/18 (χs > ks) | 
|  | > |  | |
|  | > |  | |
|  | > |  | |
|  | > |  | ✧ PE12/20 (ꝑs > ps) | 
|  | > |  | ✧ PE12/20 (ꝑt > pt) | 
|  | > |  | 
Phonetic Rule Examples
| vaxko > vakko | xk > kk | ᴱ✶baχa > ᴱQ. vakko | ✧ GL/21 | 
| maxkʷa > makkʷa | xkʷ > kkʷ | ᴱ√MAHA > ᴱQ. maqa | ✧ QL/57 | 
| taxsōra > tahōra | xs > h | ᴱ✶taχ-sṓđā́ > ᴱQ. tahóra | ✧ PE12/21 | 
| taxsōra > tahōra | xs > h | ᴱ√TAHA > ᴱQ. †tahōra | ✧ QL/87 | 
| saxsōra > saksōra | xs > ks | ᴱ✶saχsōđa > ᴱQ. saxóra | ✧ PE12/18 | 
| saxsōra > saksōra | xs > ks | ᴱ✶saχ-sōđā > ᴱQ. saxóra | ✧ PE12/21 | 
| texse > tekse | xs > ks | ᴱ√tehe > ᴱQ. tekse | ✧ PE15/69 | 
| waxsē > waksē | xs > ks | ᴹ✶wahsē > ᴹQ. vakse | ✧ Ety/WAƷ | 
| axta > akta | xt > kt | ᴱ√‘AHA > ᴱQ. akta | ✧ QL/29 | 
| extard > ektard | xt > kt | ᴱ√EKE > ᴱQ. ektar | ✧ QL/35 | 
| loxta- > lokta- | xt > kt | ᴱ√LOHO > ᴱQ. lokta- | ✧ QL/55 | 
| loxte > lokte | xt > kt | ᴱ√LOHO > ᴱQ. lokte | ✧ QL/55 | 
| luxta > lukta | xt > kt | ᴱ√LUHU > ᴱQ. lukta | ✧ QL/56 | 
| luxta- > luxta- | xt > kt | ᴱ√LUHU > ᴱQ. lukta- | ✧ QL/56 | 
| nexte > nekte | xt > kt | ᴱ√NEHE > ᴱQ. nekte | ✧ QL/65 | 
| puxta- > pukta- | xt > kt | ᴱ√PU(HU) > ᴱQ. pukta- | ✧ QL/75 | 
| raxta- > rakta- | xt > kt | ᴱ√RAHA > ᴱQ. rakta¹ | ✧ QL/78 | 
| aɸsa > apsa | ɸs > ps | ᴱ√AFA > ᴱQ. apsa | ✧ QL/29 | 
| leɸsa > lepsa | ɸs > ps | ‽ᴱ√LEFE > ᴱQ. lepsa | ✧ QL/52 | 
| aɸta- > apta- | ɸt > pt | ᴱ√AFA > ᴱQ. apta- | ✧ QL/29 | 
| aɸte > apte | ɸt > pt | ᴱ√AFA > [aft]yǝ > ᴱQ. apte | ✧ QL/29 | 
| nuɸte > nupte | ɸt > pt | ᴱ√NUFU > ᴱQ. nupte | ✧ QL/68 |