adage

noun3

1. •
   An old saying which has obtained credit by long use.

   • According to an old adage, oysters are best in months containing the letter R.
2. •
   An old saying which has been overused or considered a cliché; a trite maxim.

   • Like the poore Cat i’ th’ Addage. — 1606
3. •
   Clipping of adagio.