S Pen and compound words

When writing with the S Pen it automatically separates words incorrectly (see Background below). When writing with the keyboard this doesn't happen. I've set keyboard (which seems to affect handwriting as well) Smart typing Predictive text to On and Auto replacement to Off. Tried to set Predictive text to Off but it doesn't - and shouldn't - affect this issue.

=> So, how do I stop handwriting to separate words?



Background
In Sweden it is very common to incorrectly separate words that actually make up one longer word. This is known as "s