deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
/eka- "one"
/dvi- "two"
**tri- त्रिॱ "three"
**catur- चतुर् "four"
**paJcan- पञ्चन् "five"
**SaS- षष् "six"
**saptan- सप्तन् "seven"
**aSTan- अष्टन् "eight"
**navan- नवन् "nine"
**dazan- दशन् "ten"
paJcan- saptan- aSTan- navan- end in n न् in the /pANini systen, and lose that n न् before all endings except /Am, like this —
**paJcan- पञ्चन् + /jas OR /zas → **paJca पञ्च by SaDbhyoluk
**paJcan- पञ्चन् + /bhis → !**paJcabhis पञ्चभिस् with nalopaHprAt...
**paJcan- पञ्चन् + /bhyas → !**paJcabhyas पञ्चभ्यस् with nalopaHprAt...
**paJcan- पञ्चन् + /Am → **paJcAnAm पञ्चानाम्, with SaTcaturbhyazca ff
**paJcan- पञ्चन् + /sup' → !**paJcasu पञ्चसु with nalopaHprAt...
**saptan- सप्तन् + /jas OR /zas → !**sapta सप्त by SaDbhyoluk