Recency illusion

The recency illusion is the belief or impression that a word or language usage is of recent origin when it is long-established.

The term was coined by Arnold Zwicky, a linguist at Stanford University primarily interested in examples involving words, meanings, phrases, and grammatical constructions.

However, use of the term is not restricted to linguistic phenomena: Zwicky has defined it simply as, "the belief that things you have noticed only recently are in fact recent".

According to Zwicky, the illusion is caused by selective attention.

Linguistic items prone to the recency illusion include:

...
Wikipedia