Main Entry: pro·ver·bi·al
Pronunciation: \prə-ˈvər-bē-əl\
Function: adjective
Date: 1548
1 : of, relating to, or resembling a proverb
2 : that has become a proverb or byword : commonly spoken of <the proverbial smoking gun>
— pro·ver·bi·al·ly \-ə-lē\ adverb