An immediately preceding gati -- gatiśca [[1.4.60]], not ending in i or u retains its accent before an affix having a v follows.,
Thus प्रा꣡ङ्, प्रा꣡ञ्चौ, प्रा꣡ञ्चः or प्रा॑ङ्, प्रा॑ञ्चौ, प्रा॑ञ्चः ॥ The accent is acute and optionally svarita by 8.2.6. So also प꣡राङ्, प꣡राञ्चौ, प꣡राञ्चः , प꣡राचः, प꣡राचा ॥ But with प्रति which ends in इ, we have प्रत्यङ्, प्रत्यञ्चौ, प्रत्यञ्चः here by 6.2.139 the second member retains its original accent. Why do we say 'before an affix व्'? Observe उदञ्चनः ॥ When the nasal of 'anch' is elided, then rule 6.1.222 presents itself; but that rule is superseded when a Gati not ending in इ or उ precedes, because the present rule is subsequent. Thus प꣡राचः and प꣡राचाः ॥ In some texts, the reading is अञ्चतावप्रत्यये ॥ The affix व् is like क्विप् &c, 6.1.67.,