D defs.my
Entry 1 sense Webster, 1913

Cui bono

· Cui· bo·no · IPA
01 Lit., for whose benefit; incorrectly understood, it came to be used in the sense, of what good or use; and hence, (what) purpose; object; s…
  1. 1.
    Lit., for whose benefit; incorrectly understood, it came to be used in the sense, of what good or use; and hence, (what) purpose; object; specif., the ultimate object of life.