deriv SD cv (473) ashtadhyayi.com hei.de L 473 ETT STT a 2.4.77 ALPH OLDHOMEPAGE NEWHOMEPAGE

gA;tisthA;ghu;pA;bhUbhyas sicaH parasmaipadeSu

गाॱतिस्थाॱघुॱपाॱभूभ्यः सिचः परस्मैपदेषु ONPANINI 24077

After gA गा, sthA स्था, pA पा, bhU भू, and the /ghu, replace /sic with /luk before flat.

Coulson calls these root aorists.

gA गा + /luG /tip
→ gA गा + /cli + /tip by cliluGi
→ gA गा + /sic + /tip by clessic
→ gA गा + /luk + /tip by this rule
→ agA अगा + /tip by luGlaGlRGkSvaD...
→ agA अगा + /t'''
→ !**agAt अगात् "he went"

dhA धा + /luG /tip
→ **adhA- अधाॱ + /tip
→ adhA- अधाॱ + /t'''
→ !**adhAt अधात् "he just put"

**abhUt अभूत्

dhA धा + /luG /mas → !**adhAma अधाम

dhA धा + /luG /jhi
→ **adhA- अधाॱ + /jus
→ **adhus अधुस् "they just put"

Wait... why is there no gbH in abhUt? The /tip is clarly a hard /pit.

Because of bhUsuvostiGi.

bhU भू + /luG /jhi
→ abhU अभू + /jhi by luGlaGlRGkSvaD...
→ abhU अभू + /cli + /jhi by cliluGi
→ abhU अभू + /luk /jhi by this rule
→ abhU अभू + /anti''' by jhontaH
→ abhU अभू + /ant''' by itazca
→ abhUv अभूव् + /ant''' by bhuvovugluGl...
→ abhUv अभूव् + an अन् by saMyogAntasy...
→ !**abhUvan अभूवन्

Wait, **abhUvan अभूवन्? Shouldn't sijabhyastav... make abhUvus here?

Not so. Rule sijabhyastav... only works when there is an actual /sic, not just the ghost of a /sic that was deleted by this rule.

If so, why does **adhus अधुस् above have /jus?

this rule has an exception AtaH, that makes /jus anyway, but only after A आ.