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?