@stuff removed from ugit article

This affects mainly /udit bases and /Rdit bases formed with (at अत् as अस्)-ender affixes, like /matup /zatR /vasu. All of those get /num before strong —

/bhavatu- m + /su → **bhavAn भवान्

/bhavatR- m + /su → **bhavan भवन्

/bhavatu- m + /am → **bhavantam भवन्तम्

/bhavatR- m + /am → **bhavantam' भवन्तम्ऽ

zreyasu- श्रेयसुॱ m + /su → **zreyAn श्रेयान्

vidvasu- विद्वसुॱ m + /su → **vidvAn विद्वान्

But some lengthen their nexttolast and some don't —

the /Rdit never lengthen,
the /matup lengthen only before non-/sambuddhi /su, by atvasantasy...,
the vasu वसु and yasu यसु lengthen before all strong, by sAntamahat....

Before /su, the /Rdit, such as **hasat- हसत् and **bhavat- भवत् and **dviSat- द्विषत्, do not lengthen —

**hasat- हसत् m + /su
→ hasants हसन्त्स् by ugidacAMs...
→ hasant हसन्त् by halGyAbbhyodIrgh...
→ hasan हसन् by saMyogAntasy...
→ !**hasan हसन् "(who / while he) laughs"

As in prahasann idam abravIt प्रहसन्निदमब्रवीत् "he said this, smiling".

The neuter /zatR are seldom seen —

**hasat- हसत् n + /su OR /am
→ !**hasat हसत् n "that is laughing" by svamornapuMs...

because the referents of /zatR are most often people and animals, which are seldom expressed with neuter nouns. As neuter **mitra- मित्रॱ, **rakSas- रक्षस् in sentences like —

hasad rakSaH pazyAmi हसद्रक्षः पश्यामि "I see a laughing Rakshas"

But the /udit lengthen, by atvasantasy..., before non-/sambuddhi /su —

/hanumat- + /su
→ hanumants हनुमन्त्स् by ugidacAMs...
→ hanumAnts हनुमान्त्स् by atvasantasy...
→ **hanumAn हनुमान्

With /vasu, the n न् becomes M by nazcApadAnt...

**vidvas- विद्वस् m + /jas → !**vidvAMsas विद्वांसस्

**vidvas- विद्वस् m + /am → !**vidvAMsam विद्वांसम्

**vidvas- विद्वस् n + /zi → !**vidvAMsi विद्वांसि