The word is analyzable as derived from the transitive verb mati "to know" with the prefix tla- indicating an unspecified inanimate object translatable by "something" and the derivational suffix -ni meaning "a person who are characterized by ...": hence tla-mati-ni "a person who is characterized by knowing something" or more to the point "a knower".
Animacy |
Case assignment for core participants behaves in a broadly split-intransitive manner, though actual assignment is very complex, involving semantic role, focus, relative animacy of the participants (first or second person versus third), and nature of the noun itself.