Diaëresis

Diaëresis (¨) is used to divide a diphthong into two syllables; as, aërial.

Synaeresis, the opposite of Diaëresis, is the throwing of two syllables into one; as, Seest for seëst. Looked for look-ed.

The Diaëresis (¨) placed over the latter of two vowels denotes that the diphthong is to be sounded as two syllables; as Boötes.

As the sound of each character is produced by a single emission of the voice, their spoken language is monosyllabic. Where two syllables appear to be, from the sound, it will be found upon examination that they are two characters joined, and where the pronunciation is written with a diaëresis, both vowels are, or should be sounded together.

Diaëresis (¨) placed over a diphthong shows that it must be pronounced in two syllables: as, Aërometer.

The sibyl apologizingly answered: "There is ratably an allegeable difference between a conferable ellipsis and trisyllabic diaëresis."