I'm computationally working on an agglutinative language, a morphological analyser. The thing is that roots can form verbs (not all) but some roots like lüg 'white' is classified as Adjective if it is used as an independent word lüg ruka 'white house', and classified as verb when followed by suffixes lügüy 'it became white', literally 'it whitened'.
So, my hypothesis is that really these kind of roots belong to a "conceptual category" where the root holds the concept it displays when used, I mean it is a verb when followed by suffixes and adjective when not, but originally it has not a determined category.
The question is, in linguistics is this possible? or am I just delutional? if this is possible, is there any linguist who support this idea? who?