أَبْخَعُ
1.
[More, and most, effectual to kill, and destroy]. (K voce أَخْنَعُ, q. v.)
2.
هُمْ أَبْخَعُ طَاعَةً (tropical:) They are more sincere and more energetic in obedience than others; as though they exceeded the ordinary bounds in subduing and abasing themselves by obedience. (TA, from a tradition)