[DugwayDuke]

“Some idle conversation took place between members of the family, all in Swiss.”

I don’t think Swiss is a language.

[SamAdams76]

I don’t know about Swiss but we only speak American in my house.

[BipolarBob]

Swiss German and Romansh are two possible suspects in this puzzle.

[Tax-chick]

Swiss German is a distinctive variant, like Colombian Spanish or Australian English.

[Kickaha]

Sure it is, just like Austrian.

[Thumper1960]

The writer is confused. It’s more Old High German. For instance, PA Dutch is simply a dialect of “Deutsche”.

[Tellurian]

Many families will build a smaller house for their elderly parents, called a "Daddy house" (that is translated, the Amish pronounce it "daughty")

I suspect this isn't a correct translation either. "Daughty", as the author spelled it, seems more likely to have the same origins as the English word "dotage".

[Albion Wilde]

I don’t think Swiss is a languag

Agreed. Probably Swiss German, which is called "Deutch" (pronounced doytsch), and why many in Pennsylvania are called the "Pennsylvania Dutch", although they are not Dutch.