An exonym is a place name used by outsiders—for example, English speakers using Germany for Deutschland. The Exonym Atlas explores how other languages name countries and groups those names by usage. Fascinating to see the derivations of names, which don’t always follow language families: for example, the Latin Germania gets picked up by English, Greek, Italian and Russian, variants on Allemagne (French) turn up in Spanish, Portuguese and Arabic, and the Slavic-in-origin Niemcy (Polish) gets picked up by Hungarian but not Russian or Bulgarian. [r/etymologymaps]