The forms abhyutsādayāmakaḥ prajanayāmakaḥ cikayāmakaḥ ramayāmakaḥ pāvayāṃkriyād vidāmakran are irregularly formed in the chandas (Vedas).,
The first two of these and the fourth are the Aorists (लुङ्) of the causatives of the roots सद् 'to sit', जन् 'to be born', and रम् 'to sport': to which the affix आम् is added. The third is the Aorist of the root चि 'to collect', to which आम् has been added after the reduplication and the change of च into क of the root. The auxiliary अकः is added to all these four. The fifth is derived from the root पू 'to blow, to purify', by adding the causative affix णिच्, annexing the affix आम् before the terminations of the Potential (लिङ्) and then using after the form so obtained, the auxiliary क्रियात्. The last is the Aorist of विद् 'to know', to which आम् is added and the auxiliary अक्रन् is employed. These are the archaic forms; their modern forms are as follow:- अभ्युदसीषदत्, प्राजीजनत्, अचैषीत्, अरीरमत्, पाव्याद, अवेदिषुः ।,