Akademik

adage
noun /ˈædɪdʒ/
a) An old saying, which has obtained credit by long use.

“Like the poor cat i’ th’ adage” (Lady MacBeth)

b) An old saying, which has been overused or considered a cliché; a trite maxim.
Syn: proverb, colloquialism, apophthegm

Wikipedia foundation.