It may not list it as an alternative English spelling, but the page for the main dialect of Frisian does indicate that the language's own name for itself is spe

It may not list it as an alternative English spelling, but the page for the main dialect of Frisian does indicate that the language's own name for itself is spelled with a Y. https://en.wikipedia.org/wiki/West_Frisian_language https://en.wikipedia.org/wiki/West_Frisian_language