S. [rs] became [ss]; [rs] > [ss]

Phonetic Rule Elements

[rs] > [ss]

N. [rs] became [ss]; [rs] > [ss]

GS/§4.183 WG/§95iv. [PIE -ls-, -rs- > Kelt -ll-, -rr-] @@@

Reference ✧ PE22/27 ✧ phonetics

Order (05200)

After 02200 short final vowels vanished ON. tarsa > tars > N. tass Ety/TARAS

Related

Phonetic Rule Elements

[rs] > [ss]

Phonetic Rule Examples

persa- > pessa- rs > ss ON. persṓs > N. pesso ✧ EtyAC/PERES.013
tars > tass rs > ss ON. tarsa > tars > N. tass ✧ Ety/TARAS.007
ters > tess rs > ss ᴹ✶ters- > ters > N. tess ✧ EtyAC/TER.053