There are lasting languages and good languages, but there are no lasting good languages.
Usually happens through tacking on new features and standard API functions without removing old ones. I wish modern languages would allow different modules within the same project to use different versions of the language and be more aggressive about deprecating/removing old features.
So like if you open a module and see "version 3.0" in the manifest you know for sure that this module is not using stupid feature X from version 1.0. While still being able to use "crucial library not updated since 2003" without much fuss.
Most languages these days don't dare to change core syntax behaviour in order to not break backwards compatibility.
Java is probably the longest lasting language that I would consider good. Are there things that I hate about it? Of course. But it got a lot of things right - even things that more modern languages have done much worse at, like IDE support.