पादस्य पद-आज्य्-आति-ग-उपहतेसु

Thus पदाजिः = पादाभ्यामजति; पदातिः = पादाभ्यामतति ॥ आजिः and आतिः are formed by इण् from अज् and अत् (Unadi IV. 131), and irregularly अज् is not changed to वी though required by 2.4.56; before this affix. So also पदगः = पादाभ्यां गच्छति; पदोपहतः = पादेनोपहतः ॥ पाद belongs to Vrishadi class (VI. I. 203) and has therefore acute on the first syllable, the पद् substitute however has acute on the final, only in the उपदेश (VI. I. 171), therefore in पदोपहतः, पद् retains its accent 6.2.48, and it becomes acute on the final. While पदाजिः, पदातिः and पदगः have acute on the final (VI. I. 223) and krit-accent)).,