anachronism
uh-NAK-ruh-niz-umnounMeaning something placed in the wrong time period
Memory hook ANA-CHRON: AGAINST its TIME. A knight in shining armor rolls up to the castle on a skateboard, chatting on his phone. Wrong time! He is an anachronism.
A knight checking his phone would be a funny anachronism in a movie about castles.
In context The play was set in ancient Rome, so the audience giggled at the anachronism when an actor’s wristwatch flashed beneath his toga.
Similar time error, misdating, thing out of its time
From Greek anachronismos: ana (back, against) + chronos (time).