Accusativedirectional

Accusativedirectional is a theoretical term used in linguistic typology to describe a proposed system in which the direct-object marking (accusative) and directional information about the action are integrated into a single morphosyntactic package. In accusativedirectional systems, information about the object’s role in the sentence and the path of the event would be signaled together, rather than by separate spatial adpositions or adverbs.

Realization can occur in several ways. One common conception is that the verb carries a directional morpheme that licenses or conditions the object marked with an accusative case. Alternatively, directional markers may attach to the object phrase, or a fused affix on the verb could encode both objecthood and motion direction (toward, away from, along a path, etc.). Such systems can be compatible with various basic word orders and with both head-initial and head-final grammars.

Typological status and examples: Accusativedirectional is largely hypothetical and is mainly discussed in theoretical works or conlang design rather than as a widely attested natural-language phenomenon. If present, it would interact with issues of ambiguity, contrast with other directional systems, and diachronic change—whether directional meaning coheres with accusative case or arises through reanalysis of space expressions into morphology.

See also: accusative language, directional morphology, directional grammar, conlang, linguistic morphology.