"A load off my mind" and other expressions that are older than they appear

I remember being surprised to learn that Homer was singing about people “biting the dust” (in the Iliad) thousands of years before Freddie Mercury.

According to this site, Dickens also gave us:

[ul]
[li]abuzz[/li][li]the creeps[/li][li]devil-may-care[/li][li]flummox[/li][li]on the rampage[/li][li]sawbones[/li][li]whiz-bang[/li][/ul]

So Temujin, for example, was more likely to say something like, “Happy birthday, Ma!” than “I greet you, my mother, on this the anniversary of your birth.”