When the compound ends in a light vowel the acute accent (udātta) falls on the syllable before such last, in a bahuvrīhi samāsa preceded by nañ and su to which the affix kap -- nadyṛtaśca [[5.4.153]], is added.,
Thus अय꣡वकोदेशः, अव्री꣡हिकः, अमा꣡षकः, सुय꣡वकः, सुव्री꣡हिकः, सुमा꣡꣡षकः ॥ The repetition of पूर्व in this sutra, though its anuvritti was present from the last shows, that in the last aphorism, the syllable preceding कप् takes the acute, while here the syllable preceding the short-vowel-ending final syllable has the acute and not the syllable preceding कप् ॥ This is possible with a word which is, at least, of two syllables (not counting, of course, सु and क or कप्). Therefore, in अज्ञ꣡कः and सुज्ञ꣡कः, the acute is on the syllable preceding कप् by 6.2.173, because it has here no antyat-purvam.,