deriv SD cv (229) ashtadhyayi.com hei.de L 229 ETT STT a 6.1.111 ALPH OLDHOMEPAGE NEWHOMEPAGE

Rta:: ut ऋत‌ उत् ONPANINI 61111

R ऋ and /Gasi /Gas merge into u उ.

Actually, they merge into ur उर्, because of uraNraparaH —

pitR- पितृॱ + /Gas
→ pit पित् + u उ + s स् by this rule
→ piturs पितुर्स् by uraNraparaH
→ pitur पितुर् by saMyogAntasy...
→ **pitur पितुर् "of father"