To eliminate or make indistinct by or as if by wearing away a surface. (Merriam – Webster)
To make (oneself) modestly or shyly inconspicuous. (Merriam – Webster)
To remove something intentionally. (Merriam – Webster)
Erase (a mark) from a surface. (Oxford Dictionaries)
Cause (a memory or emotion) to disappear completely. (Oxford Dictionaries)
To efface something means to destroy or remove it so that it cannot be seen any more. (Collins Dictionary)
Cervical Effacement and Dilatation.
Natural Ways to Efface the Cervix