Zoë's name has an umlaut above the e. I never knew that's what this was called until Kate Westrich at my work told me. I am passing along the knowledge.
Zccording to dictionary.com:
um·laut ( P ) Pronunciation Key (mlout)n.
- A change in a vowel sound caused by partial assimilation especially to a vowel or semivowel occurring in the following syllable.
- A vowel sound changed in this manner. Also called vowel mutation.
The diacritic mark (¨) placed over a vowel to indicate an umlaut, especially in German.