prefix template with another template embedded

Hi CodeCat. Why does my etymology in (deprecated template usage) unbeschulbar not display properly. If I use compound instead of prefix then this sort of clever thing works fine.

Sorry - fixed it by coding it properly!

DTHLS's version works too, and is probably recommended. {{confix}} may be deleted in favour of {{affix}} at some future time, since the latter can do everything the former does.