diaeresis or dieresis /dī-ērˈi-sis or -erˈ/

1. A mark ( ¨ ) placed over a vowel, esp the second of two adjacent ones to show that it is to be pronounced separately, as in naïf
2. A pause or break where the end of the word coincides with the end of a foot (prosody)

• miswrites
• purloiner
• purloiners
• purloining
• purloins
• purls
• purpie
• purpies
• purple
• purple airway
• purple airways
• purple-born
• purple-coloured
• purpled
• purple emperor
• purple emperors
• purple finch
• purple finches
• purple fish
• purple fishes
• purple gallinule
• purple gallinules
• purple heart
• purple hearts
• purple-hued