Terbian has an asortment of affixes for derivation. Affixation in this case means suffixes (mostly) and some prefixes. Ablaut and consonant gradation appear only sporadically as the result of sound changes in the mother language. For example: datāg ‘godly, divine’, dŏtsun ‘god, numen’, dĕkkin ‘priest’ (all underlying from /dэt/ ‘god, deity’, with the schwa alternating according to the quality of the following vowel); hĕkr ‘future’, hĕgnĕ ‘eventually’ (with /kn/ assimilating to /gn/).
Some negative affixes, used for verbs and adjectives: be-, bē-, -irr, -urr, -jah, -ŏh, zl(i)-, lī-. A generic affix (with two allomorphs) showing defective quality or despise: ku-, okw-.
Affixes that turn verbs into nouns: -m, -mūr, -iz.
Affixes that turn nouns into verbs: -at.
Affixes that turn verbs into agents: -åd. Into patients/experiencers: -t, -(o)z, -ozb. Into instruments: -eb, -ukw.
Affixes that turn verbs into other verbs: jd(a)- (volitive).
Affixes that make group nouns: -ūn.
Affixes that make adjectives: -add, -āg.
Affixes that form names of activities and buildings/facilities: -al, -eb, -kwar.