अकर्मकाच्च

Operational rule vidhi

When the उपसर्ग 'उप' is attached to the verb 'स्था', it gets the प्रत्ययाः of आत्मनेपद ; provided that the verb is used in an अकर्मक sense.

Word by word (padaccheda)

Left context अकर्मकात् pañcamī · ekavacanaIndeclinable च avyaya

Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
Indeclinable An avyaya such as च "and", वा "optionally", न "not".

Dotted words are technical terms. Hover or tap one to see its card.

Full reading

अकर्मकात् च

Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.

Commentary

After the verb स्था 'to stand', preceded by उप , when meaning 'to adore', the आत्मनेपद affix is used.
As भोजनकाले उपतिष्ठते 'he stands ready at the time of dinner,' यावदभुक्तमुपतिष्ठते 'he is present whenever it is dinner time,' यावदोदनमुपतिष्ठते 'he is present whenever there is food, that is he comes at the time of dinner.' The word bhukta is formed by adding the affix kta to the root, and has the force of condition' here.

The phrase 'when used in the Intransitive' governs the three succeeding sutras also.

If it is transitive; the verb upastha takes the parasmaipada terminations. As राजानमुपतिष्ठते 'he approaches the king.'

Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.