In the chandas (Vedas) the words 1. paripanthin and 2. paripariṇ are anomalously formed by this affix and have the sense of 'an antagonist'.,
The word पर्यवस्थातृ means 'an adversary, an antagonist'. Thus मा त्वा॑ परिप॒॒रिणो॑ विद॒॒न् मा त्वा॑ परिपं॒॒थिनो विद॒॒न् (Yaj. Ved. IV. 34). These words are obsolete in secular literature. See however Gita III. 34.,