for best

for best

1. (obsolete) for good; permanently
   • 1641 May, John Milton, Of Reformation Touching Church-Discipline in England: And the Cavvses that hitherto have Hindred it; republished as Will Taliaferro Hale, editor, Of Reformation Touching Church-Discipline in England (Yale Studies in English; LIV), New Haven, Conn.: Yale University Press, 1916, →OCLC:

     Those constitutions […] are now established for best, and not to be mended.

• befrost