primeval (derived from Skt. agra, perhaps with -jña?),
see CPD and Senart Mv i note 617: Mv i.340.17 (tam eva)
paurāṇam akṣaram °nyaṃ upanipate, arthaṃ cāsya na
vibhāvayetsuḥ; similarly 341.10; 342.6, 16; iii.206.13;
always epithet of akṣara, and in all but the last associated
with paurāṇa; Pali also combines porāṇa and aggañña
as ep. of akkhara, ancient primeval formula, in similar
phrase; in BHS always subject of upanipate, came in,
occurred, was mentioned (in Pali the phrase is object of
anupatanti or anupadanti, they repeat; CPD s.v. akkhara 2).