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sya;tAsI lR;luToH

स्यॱतासी लृॱलुटोः ONPANINI 31033

(Roots get) /sya before /lRG /lRT, and /tAs before /luT.

(There is also a noun ending /sya'.)

hole there is too much stuff in syatAsI page

This overrides /zap and the other /vikaraNa, regardless of the verb class of the root.

nI नी + /lRT /tip
→ nI नी + /sya + /tip
→ **neSyati नेष्यति "will lead"

nI नी + /lRG /tip
→ /aT + nI नी + /sya + /t'''
→ !**aneSyat अनेष्यत् "would have led"

nI नी + /luT /tip
→ nI नी + /tAs + /tip
→ **netA नेता "is gonna lead"

The /tAs loses its s स् more often than not, because of several rules:

/tAs + /iT' makes **tAhe ताहे by ha::eti — as in **kartAhe कर्ताहे

/tAs + /tip and /tAs + /ta make **tA' ताऽ by luTaHpratham... — as in **kartA' कर्ताऽ

/tAs loses s स् before /tas /jhi /AtAm /jha by rica — **kartArau' कर्तारौऽ, **kartAras' कर्तारस्ऽ

/tAs loses s स् before /sip se से by tAsastyorlop... — **kartAsi कर्तासि, **kartAse कर्तासे

/tAs loses s स् before /dhvam by dhica — **kartAdhve कर्ताध्वे.

See luT finals for a list of the eighteen combinations of /tAs with a /tiG.

More examples after /aniT roots —

**drakSyati द्रक्ष्यति "(s)he'll see"

**draSTA' द्रष्टाऽ "(s)he's gonna see"

What's that "lR लृ" in the sUtra?

It means "/lRT or /lRG". Without this trick the sUtra would have been longer, "syasyatAsolRTlRGluTsu स्यस्यतासोलृट्लृङ्लुट्सु"