Concept: ergative flag

Definition

An ergative flag is a °flag that marks a °nominal as °A-argument (in a transitive clause), but not as °P-argument or °S-argument.

Croft's comparative concept

ergative category (STR):

ergative category (STR) = the morphosyntactic category in the ergative alignment system that exclusively expresses the A role. Example: The Yuwaalaraay flag -gu exclusively expresses the A role, and hence is an ergative flag. (Section 6.3.1)

Wikipedia

ergative case

SIL Glossary

ergative case

Quotation

"An ergative argument marker is a marker that signals A-arguments, but not S- and P-arguments." (Haspelmath 2022: 202)

Sources

Haspelmath 2022