deriv SD cv (426) ashtadhyayi.com hei.de L 426 ETT STT a 6.1.8 ALPH OLDHOMEPAGE NEWHOMEPAGE

liTi dhAtor an-abhyAsasya

लिटि धातोरनभ्यासस्य ONPANINI 61008

Before /liT, reduplicate a root that has no /abhyAsa.

pac पच् + /liT /tip
→ pac पच् + /Nal
→ pa प + pac पच् + /Nal by this rule
→ **papAca पपाच "he cooked"

/hu + /liT /tip
→ /hu + /Nal
→ **juhu- जुहुॱ + /Nal by this rule ff
→ juhau- जुहौॱ + /Nal by acoJNiti
→ **juhAva जुहाव "he poured"

Why do we say "unless it has an /abhyAsa"?

Also, a derivative base formed with /san /yaG has already been reduplicated, so this sUtra won't reduplicate it again:

nUy नूय् + /yaG + /liT /tip
→ nonUya नोनूय + /Nal by sanyaGoH >
→ !**nonAva नोनाव with /yaGluk

Why does the sUtra say "not having an /abhyAsa" instead of simply "not being an /abhyasta"?

Because it's not the same thing. The seven special << jakSityAday... roots are /abhyasta, but technically do not have an /abhyAsa, so this sUtra DOES reduplicate them —

/jAgR → **jajAgAra जजागार "he woke up"