Ergativity and causativity

The term ‘ergativity’ is used to describe a grammatical pattern in which there is a formal parallel between the object of a transitive clause and the subject of an intransitive clause. The subject of the transitive clause, however, is treated differently. Dixon, in his standard survey of ergativity, uses the following symbols for these three elements: S = intransitive subject, A = transitive subject, and O = transitive object (1994:6). Initially, the term ‘ergativity’ was only associated with case marking on constituents of a noun phrase. Manning summarises this as folllows: “The more patient-like argument of a transitive verb appears in the same absolutive case as the single argument of an intransitive verb, while the more agent-like argument of a transitive verb is marked differently, in what is known as the ergative case” (1996 : 3). Thus, ergativity is the counterpiece to accusativity, where one case is employed for the intransitive (S) and the transitive subject (A) (nominative) and another case marks the transitive object (O) (accusative).
The term ‘ergativity’ derives from the Greek words ergon ‘work, deed’ and ergátēs ‘doer (of an action)’ (Bussmann 1996 : 151) and thus relates to the active – the “more agent-like” – member of the pair involved in a transitive structure. Dixon states that the first use of this term was in 1912 in a study on the Dagestanian language Rutul (1994 : 3).