Efface - Things Learned while reading "The Hound of the Baskervilles" - Sherlock Holmes

The fresh beauty of the following morning did something to efface from our minds the grim and gray impression which had been left upon both of us by our first experience of Baskerville Hall.

Efface | Define Efface at Dictionary.com: "ef·face   
[ih-feys] Show IPA
–verb (used with object), -faced, -fac·ing.
1.
to wipe out; do away with; expunge: to efface one's unhappy memories.
2.
to rub out, erase, or obliterate (outlines, traces, inscriptions, etc.)."