deriv SD cv (386) ashtadhyayi.com hei.de L 386 ETT STT a 8.2.80 ALPH OLDHOMEPAGE NEWHOMEPAGE

adaso 'ser dAd u do maH

अदसो ऽसेर्दादु दो मः ONPANINI 82080

If /adas- has no s स्, replace d द् + vowel with mu मु or mU मू.

/adas- mn + /sup
→ !**ada- अदॱ + /sup, by tyadAdInAmaH

/adas- f + /sup
→ adA- अदाॱ + /sup, by tyadAdInAmaH and ajAdyataSTAp

So first we add endings to ada अद mn or /adas- + Ap → adA अदा f normally, and after that, we replace da द with mu मु, or dA दा de दे with mU मू (by the most alike rule, short u उ replaces short and long U ऊ replaces long).

Examples with mu मु replacing da द —

ada- अदॱ mn OR AdA- आदाॱ f + /os → adayos अदयोस् → **amuyos अमुयोस् "of those two"

ada- अदॱ mn + /Gi → adasmin अदस्मिन् → **amuSmin अमुष्मिन् mn "in that"

ada- अदॱ f + /Gi → adasyAm अदस्याम् → **amuSyAm अमुष्याम् f "in that"

ada- अदॱ f + /Ge → ada- अदॱ + /Ap + /Ge → adasyai अदस्यै → **amuSyai अमुष्यै f "for that"

Examples with mU मू replacing dA दा —

**ada- अदॱ f + /jas OR /zas → ada- अदॱ + /Ap + as अस् → adAs अदास् like azvAs अश्वास् → **amUs अमूस् f " s o those"

**ada- अदॱ n + /jas OR /zas → adAni अदानि like **phalAni फलानि → **amUni अमूनि n " s o those"

**ada- अदॱ m + /zas → adAn अदान् → **amUn अमून् m " o those"

Examples with mU मू replacing de दे dau दौ —

**ada- अदॱ m + /au → adau अदौ → **amU अमू m "these two"

**ada- अदॱ n + /au → ade अदे → **amU अमू n "these two"

**ada- अदॱ f + /au → ada- अदॱ + /Ap + /au → adA- अदाॱ + /zI → ade अदे → **amU अमू f "these two"

Why do we say "if /adas- has no s स्"?

The s स् of /adas- gets erased before all /sup by tyadAdInAmaH. As supodhAtupr... never erases this /sup, the only forms with s स् appear when svamornapuMs... deletes /su /am —

/adas- n + /su OR /am
→ **adas अदस् n by svamornapuMs...

and when adasa::aus... deletes /su —

/adas- mf + /su → **asau असौ by adasa::aus... ff

Wait, we say **amISu अमीषु, how come this rule teaches amUSu?

The right form is **amISu अमीषु, from the exception eta::Idbah... >.

/adas- + /sup' → **amISu अमीषु

**ada- अदॱ m + /au
→ adau अदौ
→ !**amU अमू m "those two" by this rule

**ada- अदॱ n + /au
→ **ada- अदॱ + /zI by napuMsakAcca
→ ade अदे
→ **amU अमू n "those two" by this rule

**ada- अदॱ f + /au
→ ada- अदॱ + /Ap + /au
→ adA- अदाॱ + /zI by auGa::ApaH
→ ade अदे
→ **amU अमू f "those two" by this rule

ada- अदॱ mf + /os
→ adayoH अदयोः, like **tayos तयोस् or **azvayos अश्वयोस्
→ !**amuyos अमुयोस् "of / in those two" by this rule

ada- अदॱ mn + /Gi
→ adasmin अदस्मिन्, like **tasmin तस्मिन् or **sarvasmin सर्वस्मिन्
→ amusmin अमुस्मिन् by this rule
→ amuSmin अमुष्मिन् with /Satvam
→ !**amuSmin अमुष्मिन् mn "in that"

ada- अदॱ f + /Gi
→ adA- अदाॱ + /Gi
→ adasyAm अदस्याम्, like **tasyAm तस्याम् or **sarvasyAm सर्वस्याम्
→ amusyAm अमुस्याम् by this rule
→ amuSyAm अमुष्याम् with /Satvam
→ !**amuSyAm अमुष्याम् f "in that"

ada- अदॱ f + /Ge
→ ada- अदॱ + /Ap + /Ge
→ ada- अदॱ + syai स्यै, like **tasyai तस्यै or **sarvasyai सर्वस्यै
→ amusyai अमुस्यै by this rule
→ amusyai अमुस्यै with /Satvam
→ !**amuSyai अमुष्यै "for that"

**ada- अदॱ f + /jas OR /zas
→ ada- अदॱ + /Ap + /jas OR /zas
→ adAs अदास् like **azvAs'' अश्वास्ऽऽ f or **azvAs' अश्वास्ऽ f
→ !**amUs अमूस् f "those" by this rule

ada- अदॱ m + /zas
→ adAn अदान् like **azvAn अश्वान्
→ !**amUn अमून् m "those" by this rule

ada- अदॱ n + /jas OR /zas
→ ada- अदॱ n + /zi by jazzasozziH
→ adAni अदानि like **phalAni फलानि
→ !**amUni अमूनि n "those" by this rule

I can't disassemble the original sUtra.

See wording of adasose.