Definition from Wiktionary, the free dictionary
|Unicode name||LATIN SMALL LETTER Y WITH DIAERESIS|
|Unicode block||Latin-1 Supplement|
ÿ lower case (upper case Ÿ)
- The letter y with a diaeresis, usually used in old or handwritten texts as a ligature for Dutch or Afrikaans ĳ: lÿs = lijs, lijst (list), and also in rare French names as variant of ï, like Louÿs or L'Haÿ-les-Roses, indicating that the ÿ is to pronounced separately.