Historical clue formulations

• Accustoms (to) — 2022-04-07
• Accustoms — 2019-08-21
• Hardens — 2015-05-02
• Accustoms — 2013-06-04
• Toughens — 2008-01-26
• Accustoms — 2005-11-16
• Habituates — 2005-03-16
• Accustoms — 2004-10-04
• Habituates — 1997-06-22