SINCE 1828
cui bono
noun
cui bo·no
| \ ˈkwē-ˈbō-(ˌ)nō
\
\
Definition of cui bono
1
: a principle that probable responsibility for an act or event lies with one having something to gain
2
: usefulness or utility as a principle in estimating the value of an act or policy
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Merriam-Webster unabridged
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