资料来源 : Webster's Revised Unabridged Dictionary (1913)

Mainpernable \Main"per*na*ble\, a. [OF. main hand + pernable,
   for prenable, that may be taken, pregnable. See
   {Mainpernor}.] (Law)
   Capable of being admitted to give surety by mainpernors; able
   to be mainprised.