deriv SD cv (1283) ashtadhyayi.com hei.de L 1283 ETT STT a 5.2.127 ALPH OLDHOMEPAGE NEWHOMEPAGE

arza::-Adibhyo 'c

अर्श‌ॱआदिभ्यो ऽच् ONPANINI 52127

/ac' comes after the arzas अर्शस्-class (in the sense of /matup).

This "ac'" is /cit. (See ac disambiguation.)

arzAMsy asya vidyante अर्शांस्यस्य विद्यन्ते
→ arzas- अर्शस् "piles" + /ac'
→ !**arzasa- अर्शसॱ "that has piles"

The arza::Adi अर्श‌आदि (arzas अर्शस्-class) are an /AkRtigaNa. Most of them express a defect of an organ. Ashtadhyayidotcom says —

svAGgAt hInAt (gaNasUtram ) - ityukte svasya hIna-aGgavAcibhyaz zabdebhyaH (inferior state of a body organ) ac pratyayaH bhavati | yathA - khaJjaH (broken / lame / handicapped) pAdaH asya asti saH khaJjaH , kANaH cakSuH asya asti saH kANaH - AdayaH |

But some of them are used just in the sense of "having", such as urasa- "having a large chest".