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

• bucklering
• bucklers
• buckles
• buckle to
• buckle under
• Buckley's
• Buckley's chance
• buckling
• bucklings
• buckminsterfullerene
• buck naked
• bucko
• buckoes
• buck passing
• buck-passing
• buckra
• buck-rabbit
• buck-rabbits
• buckrake
• buckrakes
• buckram
• buckramed
• buckraming
• buckrams
• buckras