द्वैपवैयाघ्रादञ्

Operational rule vidhi

The words द्वैप and वैयाघ्र get the प्रत्यय अञ् in the meaning of 'परिवृतो रथः'

Word by word (padaccheda)

Left context द्वैप- वैयाघ्रात् pañcamī · ekavacanaSubstitute / term अ prathamā · ekavacana

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

द्वैप-वैयाघ्रात् अञ्

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

Commentary

The affix अञ् comes after the words द्वैप and वैयाघ्र being in the Instrumental -3rd case in construction in the sense of 'surrounded' the thing so surrounded being 'a chariot'.
Thus द्वैपेन परिवृतो रथः = दैपः 'a car covered with a tiger's skin'. So also वैयाघ्रः ॥ This affix अञ् debars अण्, the difference between these two being in accent only.

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