Lexical affixes
Prefixes
These are all the known prefixes that change the class of a word as of December 29, 2009. None of these appear to change the position of the stress accent.
- nì- forms adverbs from nouns, adjectives and verbs, as in nìNa'vi Na'vily, in Na'vi (TO), nìftue easily from ftue easy, nìtam enough from tam suffice, be enough (ASG, Dictionary)
- tì- forms nouns from adjectives and verbs, as in tìftia study (n.) from ftia study (v.) (SciMag), tìngay truth from ngay true (ASG, Dictionary)
- le- forms adjectives from nouns, as in lehrrap dangerous from hrrap danger (ASG, Dictionary), leNa'vi Na'vi (adj.) from Na'vi Na'vi (n.) (ASG, Weaving Song)
Suffixes
- -tu, short for tute person, is used to derive person nouns from parts of speech other than verbs (vs. -yu, which operates on verbs), as in reltseotu artist and pamtseotu musician from pamtseo music (Art-related vocabulary).
- -yu creates an agent noun from a verb, as in taronyu hunter from taron hunt (ASG, Dictionary). It does not appear to alter the stress accent of a word.