What’s in a swear? The world’s filthiest words typically refer to something vulgar or taboo, for one. But there’s something else swears across the world’s languages have in common. They’re all missing ...

Ryan McKay receives funding from the NOMIS Foundation. Shiri Lev-Ari does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, ...

Almost half of all people in the world today speak an Indo-European language, one whose origins go back thousands of years to a single mother tongue. Languages as different as English, Russian, ...