Lost in translation... but lost in time instead?

I'm looking for a phrase similar to "lost in translation", except in relation to time, meaning a sentence or word loses its original meaning over time and it morphs to mean something different than what was meant in a different time period. Is there a word or phrase like that?

Example: the phrase "Blood is thicker than water" supposedly used to mean that "ties between people who've made a blood covenant were stronger than ties formed by the water of the womb", but over time it changed to mean the complete opposite. How would you refer to such a change?

Anachronistic? I know it means "chronologically misplaced" so maybe it's a stretch in that it doesn't specifically mean that the meaning is reversed, but it could mean that a sentence or word no longer fits our current use.