Geiger 100.2 records but does not explain the Pali form,
which seems to be a curious blend of Pali avidvā = Skt.
a-vidvān with a-vidu, the s due to Skt. viduṣ-, cf. viduṣa-
ka), ignorant: °sū, nom. pl., SP 45.9; 55.2 (Kashgar rec.
avidvalāś); 56.2; 204.6; °sūnāṃ, gen. pl., 57.8 (all vss).