Historical clue formulations

• "Whoa, settle down" — 2021-05-09
• "Just relax!" — 2017-09-07
• Kick back — 2013-12-07
• Relax, slangily, with "out" — 2011-06-07
• Hang loose — 2010-12-03
• "Take it easy!" — 2010-11-21
• Flu symptom — 2009-04-10
• Recipe direction — 2006-05-24
• "Relax, man!" — 2004-12-05
• Shiver's cause — 2004-10-24
• "Cool it!" — 2003-10-08
• "Relax, bro!" — 2003-01-08
• Bit of fall weather — 1994-06-20