Historical clue formulations

• "Don't mention it" — 2025-04-27
• Friendly response to "Do you mind?" — 2019-02-11
• "It was my pleasure" — 2016-07-01
• Polite response to "Thank you" — 2013-03-17
• Nay — 1997-01-01
• Less than rarely — 1996-01-26
• "Thank you" response — 1995-10-19
• Nohow — 1994-01-15