Achever, vtr : to finish, to finish [sth] off, to complete.

The French word « achever » looks a lot like the English word “achieve.”

The word “achieve” in English typically means to accomplish or to be successful.

In French, « achever » means “to finish, to finish something off, or to complete.”

Vous pourrez lire mon roman quand je l’aurai achevé.
You can read my novel when I’ve finished it.

Cette journée de 14 h m’a achevé !
That fourteen-hour day killed me (finished me off).