Obliterate \Ob*lit"er*ate\, v. t. [imp. & p. p. Obliterated; p. pr. & vb. n. Obliterating.]

[L. obliteratus, p. p. of obliterare to obliterate; ob (see Ob-) + litera, littera, letter. See Letter.]

1. To erase or blot out; to efface; to render undecipherable, as a writing.

2. To wear out; to remove or destroy utterly by any means; to render imperceptible; as. to obliterate ideas; to obliterate the monuments of antiquity.

The harsh and bitter feelings of this or that experience are slowly obliterated. --W. Black.

Source: Webster's Revised Unabridged Dictionary (1913)