Symbol 6080 from IEC 60417 - Title/Meaning: Partial backward delete Function/description: [To identify the control to delete a part of the object at the position which the cursor would have when moved one position back, and performing this cursor move if the last part of this object was deleted. This symbol should be used in the orientation shown.]
Additional information: 
Usually, this symbol means a diacritical mark to be removed from its base character.
Own work using: iso.org/obp/graphics/grs/800a9274-3d0d-4cf7-898e-4306f98b9e38 200.png
Vectorization:  Mrmw