Historical clue formulations

• Slowly wanes, as support — 2024-07-07
• Wears away — 2024-06-05
• Wears away — 2024-04-30
• Wears down — 2022-11-06
• Breaks the bank? — 2022-08-27
• Crumbles away — 2020-10-22
• Loses ground slowly but surely — 2020-10-08
• Wears away — 2017-10-17
• Wears — 2017-05-31
• Deteriorates — 2016-12-01
• Diminishes by degrees — 2016-09-21
• Whittles away — 2016-01-30
• Undermines, as support — 2014-02-09
• Washes away — 2013-08-06
• Wears away — 2013-01-21
• Chips away at — 2011-10-30
• Slowly disappears — 2010-12-29
• Chips away at — 2010-11-03
• Wears away — 2009-02-24
• Diminishes bit by bit — 2009-02-01
• Undermines — 2008-05-02
• Loses ground? — 2007-12-30
• Wears down — 2007-08-23
• Weakens — 2004-11-18
• Wears down — 2003-01-17
• Washes away — 2001-05-18
• Eats away at, as support — 1999-05-24
• Reduces gradually — 1999-02-20
• Cuts into — 1997-12-21
• Wears away — 1997-06-23
• Undergoes nivation — 1997-01-04
• Diminishes — 1996-01-04
• Eats away, as soil — 1995-03-13
• Eats at the beach — 1994-04-13
• Deteriorates — 1994-01-05