What is curfew

This was part of an answer/question last night with Aaron Rodgers Pays Tribute to Alex Trebek During 'Jeopardy!' Guest Hosting Debut broadcasted last night.

The word "curfew" /ˈkɜːr.fjuː/ comes from the Old French phrase "couvre-feu", which means "cover fire". It was later adopted into Middle English as "curfeu", which later became the modern "curfew".Curfew - Wikipedia https://en.wikipedia.org › wiki › Curfew

Etymology can be interesting to me, curfew made me say wow. Many of my blogs so far might seem etymology heavy. …so far.