Answer: umlauted

AnswerCrossword Clue
umlautedto write an umlaut over
umlautedUMLAUT, to modify a vowel sound
umlautedmark (┬¿) used as a diacritic over a vowel, as ├ñ, ├Â, ├╝, to indicate a vowel sound different from that of the letter without the diacritic, esp. as so used in German
umlautedto modify by umlaut
umlauted(in Germanic languages) assimilation in which a vowel is influenced by a following vowel or semivowel