ज्ञोऽविदर्थस्य करणे

Operational rule vidhi

Of the verb ज्ञा , when not used in the sense 'to know', the instrument takes the 6th-Case-affix.

Word by word (padaccheda)

Target ज्ञः ṣaṣṭhī · ekavacanaTarget अविदर्थस्य ṣaṣṭhī · ekavacanaRight context saptamī · ekavacana

Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").

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

Full reading

ज्ञः अविदर्थस्य

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

Commentary

Of the verb ज्ञा , when not used in the sense 'to know', the instrument takes the 6th-Case-affix.
Ex. मधुनो जानीते 'he engages in sacrifice with honey'. So also सर्पिषो जानीते. The verb ज्ञा when not meaning 'to know', has the significance of 'to act, or to engage in;' or it may denote 'false knowledge'; as सर्पिषि रक्तः प्रतिहतोवा. Compare 1.3.45.

But not so here स्वरेण पुत्रं जानाति 'he recognises the son by the voice.'

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