ob-littĕrātĭo

I. a blotting out, erasing, effacing, obliteration; and, in partic., a blotting out from the memory, a forgetting, forgetfulness (postAug.): aeris oblitteratio, Plin. 34, 7, 18, § 47: vetustatis, Arn. 6, 194: praeteritorum, Amm. 30, 6, 1.