401. Original adjectives having the root-form

But compound adjectives, having a root as final member, with the value of a present participle, are abundant in every period of the language.

a. Possessive adjective compounds, also, of the same form, are not very rare: examples are yatásruc with offered bowl; sū́ryatvac sun-skinned; cátuṣpad four-footed;suhā́rd kind-hearted, friendly; rītyàp (i.e. rītí-ap) having streaming waters; sahásradvār furnished with a thousand doors.

b. The inflection of such compounds is like that of the simple root-stems, masculine and feminine being throughout the same, and the neuter varying only in the nom.-acc.-voc. of all numbers. But special neuter forms are of rare occurrence, and masc.-fem. are sometimes used instead.

c. Only rarely is a derivative feminine stem in ī formed: in the older language, only from the compounds with ac or añc (407 ff.), those with han (402), those with pad, asékapadī, dvipádī, and with dant, as vṛ́ṣadatī, and mahī, ámucī (AV.), úpasadī (? ÇB).

Irregularities of inflection appear in the following: