S. [ɸ], [β] became [f], [v]; [ɸ|β] > [f|v]

Phonetic Rule Elements

[ɸ] > [f]
[β] > [v]

Phonetic Rule Examples

aɸɸat- > affat- ɸ > f ap-pata > S. aphad- ✧ WJ/387.3311
aɸɸet- > affet- ɸ > f at-kwet > S. aphed ✧ PE17/166.2007
alɸa > alfa ɸ > f T. alpa > S. alph ✧ UT/265.3802
alɸa > alfa ɸ > f alkwa > S. alf ✧ VT42/07.1412
ɸaila > faila ɸ > f PHAYA > S. fael ✧ PM/352.1609
ɸerja > ferja ɸ > f pheryā > feir > S. fair ✧ PE17/181.0605
ɸindarauto > findarauto ɸ > f findarātō > find-raud > findrod > S. finrod ✧ VT41/09.1403
ɸineka > fineka ɸ > f finik/fink > S. fineg ✧ PE17/017.3808
nimɸiraite > nimfiraite ɸ > f ninkwiraite > ni(m)phraed > S. niphred ✧ PE17/055.2211

N. [ɸ], [β] became [f], [v]; [ɸ|β] > [f|v]

GS/§4.180 @@@

Order (01400)

After 00600 initial [s] vanished before spirants ON. (s)pharasse > N. faras Ety/SPAR
Before 01500 [ou] became [au] ON. Phayanṓr > Feanoúr > N. Féanor Ety/PHAY
Before 05100 [mb], [nd] became [mm], [nn] ON. phenda > fend > N. fenn Ety/PHEN
Before 05500 [œ] became [e] ᴹ√PHOR > fœir > N. feir Ety/PHOR

Phonetic Rule Elements

[ɸ] > [f] ✧ PE19/018.2207 (ph/f- > f-); PE19/018.2607 (ph/f- > f/f-); PE19/021.1206 (phr- > fr-); PE19/021.2206 (phl- > fl-); PE19/023.1006 (-ph- > -f-)
[β] > [v]

Phonetic Rule Examples

aɸɸarxa > affarxa ɸ > f ON. appharkha > N. afarch ✧ EtyAC/A.081
alɸa > alfa ɸ > f ON. alpha > N. alf ✧ Ety/ÁLAK.033
ɸaika > faika ɸ > f ᴹ√SPAY > N. foeg ✧ Ety/SPAY.009
ɸaina > faina ɸ > f ᴹ√PHAY > N. foen ✧ Ety/PHAY.029
ɸaira- > faira- ɸ > f ᴹ√PHAR > N. feira- ✧ EtyAC/PHAR.064
ɸalasse > falasse ɸ > f ᴹ√PHAL/PHÁLAS > N. falas ✧ Ety/PHAL.043
ɸalma > falma ɸ > f ᴹ√PHAL/PHÁLAS > N. falf ✧ Ety/PHAL.035
ɸalθa- > falθa- ɸ > f ON. phalsóbe > N. faltho ✧ Ety/PHAL.038
ɸaŋga > faŋga ɸ > f ON. sphanga > N. fang ✧ Ety/SPÁNAG.011
ɸanja > fanja ɸ > f ᴹ√SPAN > N. fein ✧ Ety/SPAN.008
ɸanθur > fanθur ɸ > f ᴹ✶Spanturo > N. Fennyr/Fennuir ✧ Ety/SPAN.052
ɸara- > fara- ɸ > f ON. (s)pharóbe > N. faro ✧ Ety/SPAR.020
ɸaradīr > faradīr ɸ > f ᴹ√SPAR > N. feredir ✧ Ety/SPAR.016
ɸaradīr > faradīr ɸ > f ᴹ√PHAR² > N. feredir ✧ EtyAC/PHAR².016
ɸarasse > farasse ɸ > f ON. (s)pharasse > N. faras ✧ Ety/SPAR.010
ɸare > fare ɸ > f ᴹ√PHAR > N. far ✧ Ety/PHAR.026
ɸarma > farma ɸ > f ᴹ√SPAR² > N. farf ✧ EtyAC/SPAR².016
ɸarna > farna ɸ > f ᴹ√PHAR > N. farn ✧ Ety/PHAR.024
ɸasta > fasta ɸ > f ON. phasta > N. fast ✧ Ety/PHAS.015
ɸauka > fauka ɸ > f ON. phauka > N. faug ✧ Ety/PHAU.013
ɸeanour > feanour ɸ > f ON. Phayanṓr > Feanoúr > N. Féanor ✧ Ety/PHAY.026
ɸeleke > feleke ɸ > f ᴹ√PHELÉK > N. feleg ✧ EtyAC/PHELÉK.011
ɸelɣa > felɣa ɸ > f ON. phelga > N. fela ✧ Ety/PHÉLEG.011
ɸenda > fenda ɸ > f ON. phenda > fend > N. fenn ✧ Ety/PHEN.008
ɸere > fere ɸ > f ON. pheren > N. †fêr ✧ Ety/BERÉTH.045
ɸerja > ferja ɸ > f ᴹ√PHIR > N. feir ✧ Ety/PHIR.028
ɸerna > ferna ɸ > f ᴹ√PHIR > N. fern ✧ Ety/PHIR.034
ɸiliki > filiki ɸ > f ᴹ√PHILIK > N. filig ✧ Ety/PHILIK.009
ɸindekouno > findekouno ɸ > f ᴹ✶Findekāno > N. Fingon ✧ Ety/PHIN.035
ɸindele > findele ɸ > f ON. sphindéle > findel > N. finnel ✧ Ety/SPIN.018
ɸinderouto > finderouto ɸ > f ᴹ✶Phinde-rauto > N. Finrod ✧ Ety/PHIN.012
ɸinwe > finwe ɸ > f ON. Phinwe > N. **Finw ✧ Ety/PHIN.024
ɸorja > forja ɸ > f ᴹ√PHOR > fœir > N. feir ✧ Ety/PHOR.017
ɸormena > formena ɸ > f ᴹ√PHOR > N. forven ✧ Ety/PHOR.024
ɸormenja > formenja ɸ > f ᴹ√PHOR > N. fervein ✧ EtyAC/PHOR.021
ɸorna > forna ɸ > f ᴹ√PHOR > N. forn ✧ Ety/PHOR.040
ɸorote > forote ɸ > f ᴹ✶phoroti > N. forod ✧ Ety/PHOR.027
ɸouna > founa ɸ > f ᴹ✶spāna > N. faun ✧ Ety/SPAN.010
ɸoura > foura ɸ > f ᴹ√SPAR² > N. faur ✧ EtyAC/SPAR².010
ɸuia- > fuia- ɸ > f ON. phuióbe > N. fuio ✧ Ety/PHEW.011
ɸuine > fuine ɸ > f ᴹ✶phuine > N. fuin ✧ Ety/PHUY.014
inɸanθa > infanθa ɸ > f ON. inpanta > in-fant > N. ifant ✧ Ety/YEN.073
kalɸa > kalfa ɸ > f ᴹ√KALPA > N. calf ✧ Ety/KALPA.007
nimɸirete > nimfirete ɸ > f ᴹ√NIK-W > N. nifred ✧ Ety/NIK-W.032
salɸa > salfa ɸ > f ON. salpha > N. salff ✧ Ety/SÁLAP.017
silɸion > silfion ɸ > f ᴹ√SÍLIP > N. **Silfion ✧ Ety/SIL.117

G. [ɸ], [β] became [f], [v]; [β|ɸ] > [v|f]

Phonetic Rule Elements

[ɸ] > [f]
[β] > [v]

Phonetic Rule Examples

ɸaigrin > faigrin ɸ > f ᴱ√FAYA > G. fegrin ✧ QL/037.7902
ɸaire > faire ɸ > f ᴱ√FAYA > G. fair ✧ LT1A/Dor Faidwen.037
ɸaiθ > faiθ ɸ > f ᴱ√FAYA > G. faith ✧ LT1A/Dor Faidwen.039
ɸalma > falma ɸ > f ᴱ√fal-¹ > G. falm ✧ GL/33.8701
ɸalt > falt ɸ > f ᴱ√fal-² > G. falt ✧ GL/33.9001
ɸīðlī > fīðlī ɸ > f ᴱ✶fīđ’lī > G. faigli ✧ GL/35.1902
ɸḹk > fḹk ɸ > f ᴱ√FḶKḶ > G. Falc ✧ LT2A/Glorfalc.031
ɸḹkan > fḹkan ɸ > f ᴱ√FḶKḶ > G. falchon ✧ LT2A/Glorfalc.057
ɸṇ̄t > fṇ̄t ɸ > f ‽ᴱ√fṇ̄t > G. fant ✧ GL/34.1101
ɸṇta- > fṇta- ɸ > f ᴱ√fṇt > G. fintha- ✧ GL/35.2801
ɸoloim > foloim ɸ > f ᴱ√fol- > G. fluim ✧ GL/35.7001
ɸoxna > foxna ɸ > f ᴱ√foχo > G. fuin ✧ GL/36.2901
ɸoxs > foxs ɸ > f ᴱ√foχo > G. fuis ✧ GL/36.4001
ɸoxta- > foxta- ɸ > f ᴱ√foχo > G. fuitha¹ ✧ GL/36.4501
ɸur- > fur- ɸ > f ᴱ√FURU/HURU > G. fur- ✧ LT2A/Gar Thurion.026
jaβ- > jav- β > v ᴱ√ı̯aƀa > G. gav- ✧ GL/38.1201
jaβsta > javsta β > v ᴱ√ı̯aƀa > G. gaust ✧ GL/38.1601
taβ- > kav- β > v *ᴱ√tyav- > G. caf- ✧ GL/24.6101
kaβka > kavka β > v ᴱ√kava- > G. caug ✧ GL/25.6201
kaβko > kavko β > v ᴱ√kava- > G. caug ✧ GL/25.6101
kaβm > kavm β > v ᴱ√kava- > G. caum ✧ GL/25.6601
kaβta- > kavta- β > v *ᴱ√tyav- > G. cautha- ✧ GL/24.6301
kwiβ- > kwiv- β > v ᴱ√QIV > G. cwiv- ✧ GL/29.0901
maβs > mavs β > v ᴱ√maƀ > G. maus ✧ GL/57.2401
naβs > navs β > v ᴱ√naf- > G. naus ✧ GL/59.8301
raβste > ravste β > v ᴱ√RAVA > G. raust ✧ LT1A/Meássë.105
uβna > uvna β > v ᴱ✶uƀna > G. †uvon ✧ GL/75.1801