best part of

best part of

1. most of, majority of
   • 1963, Margery Allingham, chapter 1, in The China Governess: A Mystery, London: Chatto & Windus, →OCLC:

     The huge square box, parquet-floored and high-ceilinged, had been arranged to display a suite of bedroom furniture designed and made in the halcyon days of the last quarter of the nineteenth century, when modish taste was just due to go clean out of fashion for the best part of the next hundred years.

• better part of