Nearly all European languages, and many Asian ones, derive from a common ancestor called Proto-Indo-European.

The Basque language has no known relatives anywhere in the world — it is a true language isolate.

The word 'music' comes from the ancient Greek 'mousike,' meaning 'art of the Muses.'

There are languages with no word for specific colors — some languages group blue and green as one color.

Portmanteau words combine two words — 'breakfast + lunch = brunch,' 'smoke + fog = smog.'

The English word 'war' derives from the Old High German 'werra,' meaning strife or confusion.

The German word 'Weltschmerz' means the pain of comparing the world as it is with how it should be.

The phrase 'rule of thumb' has multiple possible origins — none involving domestic violence, despite popular myth.

Some languages have no word for 'left' and 'right' — speakers always use cardinal directions (north, south, east, west).