The disc, being flat, has no real horizon. Any adventurous sailor who got funny ideas from staring at eggs and oranges for too long and set out for the antipodes soon learned that the reason why distant ships sometimes looked as though they were disappearing over the edge of the world was that they were disappearing over the edge of the world.
Terry PratchettNac Mac Feegle! The Wee Free Men! Nae king! Nae quin! Nae laird! Nae master! We willna' be fooled again!
Terry PratchettPicturesque meant - he decided after careful observation of the scenerey that inspired Twoflower to use the word - that the landscape was horribly precipitous. Quaint, when used to describe the occasional village through which they passed, meant fever-ridden and tumbledown. Twoflower was a tourist, the first ever seen on the discworld. Tourist, Rincewind had decided, mean 'idiot'.
Terry PratchettAnd all the stories had, somewhere, the witch. The wicked old witch. And Tiffany had thought: Where's the evidence?
Terry Pratchett