bedivere
/ˈbɛdɪvɪər/Definitions
1. noun
A surname of the legendary British hero Sir Bedivere, and also a given name.
“In the Arthurian legend, Sir Bedivere is a loyal knight who returns Excalibur to the Lady of the Lake.”
2. verb
To betray or desert, especially in a time of need.
“He felt guilty for bedivering his friends in their time of crisis.”