11. The former follows the regular pattern of the stable root serving as a point for characteristic suffixations . 12. When additional syllables are added to such words through inflection or suffixation , the stress normally becomes regular. 13. The basic scheme of suffixation is given in the table below valid for almost all nouns and adjectives. 14. The morphological process of stem alternation is achieved through affixation, in which suffixation is preferred to prefixation. 15. The variable word type may be affected by many prefixation, suffixation , infixation, reduplication, and glottalization. 16. Washo uses partial or total reduplication of verbs or nouns to indicate repetitive prefixation and suffixation on nouns and verbs. 17. In addition to suffixation and prefixation, Tzeltal uses the morphological processes of infixation, reduplication, and derive words. 18. Thomason would spend a year in this region writing her dissertation project on noun suffixation in Serbo-Croatian dialectology. 19. Verbs root can be marked for verbal plurality in nine different ways including reduplication, suffixation , infixation and devoicing. 20. They also show stem variation depending locative suffixation , in particular with the allative suffix "-dei ".