4.4.37
माथोत्तरपदपदव्यनुपदं धावति
Operational rule vidhi
The affix ठक् also comes in the sense of 'who runs' after a word having माथ as its second term and after the words पदवी and अनुपद.
Word by word (padaccheda)
Object माथ- उत्तरपद- पदवी- अनुपदम् dvitīyā · ekavacanaVerb धावति tiṅanta
- Object Dvitīyā (2nd case).
- Verb A finite verb form (tiṅanta).
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Full reading
माथ- उत्तरपद- पदवी- अनुपदम् धावति
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix ठक् also comes in the sense of 'who runs' after a word having माथ as its second term and after the words पदवी and अनुपद।
Thus दण्डमाथं धावति = दाण्डमाथिकः 'who runs on a high way'. So also शौल्कमाथिकः ॥ Similarly पादविकः, आनुपदिकः ॥ The word माथ means 'a way'.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.