Interesting quiz! I'm not used to seeing so many common English words written together as one. That's more of a German thing usually. Before this quiz I could've sworn that some of these are written as 3 separate words (inasmuch, insomuch, insofar, howbeit...).
I was so sure "herebefore" would be a word on here (even though it would be more of a two-part word) but apparently it is both not accepted by Scrabble and generally archaic.