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

• insouled
• insouling
• insoulment
• insoulments
• insouls
• in-source
• in-sourced
• in-sources
• in-sourcing
• in spades
• inspan
• inspanned
• inspanning
• inspans
• in spate
• in special
• in specie
• inspect
• inspected
• inspecting
• inspectingly
• inspection
• inspectional
• inspections
• inspective