umlaut /ŭmˈlowt/

1. A vowel change in Germanic languages brought about by a vowel or semivowel (esp i or j, usu now lost) in the following syllable
2. The diacritical sign (¨), dots placed over a vowel, indicating such a modification

To modify (a vowel) with an umlaut

• sycophantries
• sycophantry
• sycophants
• sycoses
• sycosis
• Sydenham's chorea
• Sydneysider
• sye
• syed
• syeing
• syen
• syenite
• syenites
• syenitic
• syes
• SYHA
• syke
• syker
• sykes
• syl-
• syl.
• syllabaries
• syllabarium
• syllabary
• syllabi