कुसीददशैकादशात् ष्ठन्ष्ठचौ

Operational rule vidhi

The affixes ष्ठन् and ष्ठच् come respectively after the words कुसीद and दशैकादश when the sense is 'he gives for a mean motive'.

Word by word (padaccheda)

Left context कुसीद- दशैकादशात् pañcamī · ekavacanaSubstitute / term ठ - ष्ठचौ prathamā · dvivacana

Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.

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

Pink letters are it-markers (anubandhas), tags dropped by 1.3.9. Hover or tap one for the rule that marks it, or try the it-letter finder.

Full reading

कुसीद-दशैकादशात् ष्ठन्-ष्ठचौ

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

Commentary

The affixes ष्ठन् and ष्ठच् come respectively after the words कुसीद and दशैकादश when the sense is 'he gives for a mean motive'.
The word कुसीद means 'interest'. The lending of ten (दश) on a condition that the borrower will pay eleven (एकादश) after a month is called दशैकादश ॥ This sutra debars ठक् ॥ The difference between the two affixes ष्ठन् and ष्ठच् is in the accent 6.1.197 and 6.1.163 Thus कुसीद + ष्ठन् = कु꣡सीदकः fem. कुसीदकी꣡ 6.1.41. So दशैकादशिकः꣡ fem की꣡ ॥

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