छन्दसि शायजपि

Operational rule vidhi

The श्ना प्रत्यय following a हल् letter is seen converted either to शायच् or शानच् when followed by the 'हि' प्रत्यय.

Word by word (padaccheda)

Right context छन्दसि saptamī · ekavacanaSubstitute / term शायच् prathamā · ekavacanaIndeclinable अपि avyaya

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").
Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
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

छन्दसि शायच् अपि

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

Commentary

In the छन्दस् (Vedas), शायच् is also the substitute of श्ना after the roots ending in consonants, when हि follows.
Thus गृभाय जिह्वया मधु, (Rig Veda VIII.I7.5). The affix शानच् is also employed; as बधान पशून् 'kill the beasts'.

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