Historical clue formulations

• Prefix with -bar — 2026-07-19
• Prefix with -metric or -morphic — 2026-01-26
• Prefix with -metric — 2025-12-30
• Equal: Prefix — 2025-12-09
• Prefix with -morphic — 2025-10-08
• Prefix meaning "equal" — 2024-08-19
• Equal at the start? — 2023-09-23
• Equal: Prefix — 2022-02-13
• Prefix with -tonic — 2022-01-20
• Same: Prefix — 2022-01-16
• Cousin of equi- — 2021-12-09
• Prefix with -therm — 2021-05-24
• Prefix with thermal — 2021-04-11
• Camera film speed inits. — 2020-08-28
• Prefix with -morphic — 2019-09-15
• "Am ___ out of touch?" — 2019-09-10
• Prefix with -pod — 2018-08-19
• Prefix with -bar — 2018-08-09
• Film speed letters — 2018-07-13
• Prefix with propyl — 2017-11-27
• Equal: Prefix — 2017-10-09
• Prefix with -metric — 2017-08-15
• Equal at the start? — 2017-07-25
• Prefix with -tonic — 2016-11-12
• Prefix with -therm — 2016-10-09
• One-on-one basketball play, slangily — 2016-07-01
• Prefix with metric — 2015-07-12
• Equal: Prefix — 2015-05-31
• Film speed letters — 2014-11-22
• Prefix with kinetic — 2013-06-07
• Equal: Prefix — 2013-02-10
• Weather prefix with bar — 2013-01-21
• Equal: Prefix — 2012-07-23
• Uniform: Prefix — 2012-04-05
• Uniform: Prefix — 2012-04-01
• Prefix with bar — 2012-03-20
• Prefix with bar — 2011-12-18
• Same: Prefix — 2011-11-09
• Prefix with -meric — 2011-09-02
• Equal: Prefix — 2011-08-15
• Prefix with -meric or -metric — 2011-07-19
• Prefix with metric — 2011-06-21
• Thermal opening? — 2011-05-22
• Prefix with metric — 2011-04-24
• Equal: Prefix — 2011-01-04
• Prefix with metric — 2010-09-02
• Equal: Prefix — 2010-01-31
• Prefix with metric — 2009-10-11
• Equal: Prefix — 2009-08-10
• Prefix with lateral — 2009-03-21