The origin is unknown. Perhaps from the Proto-Indo-European possessive suffix *-sḱo- (or *-sko-), which may have been first incorporated in the genitive plural form, and thence spread to the other cases. Compare Proto-Indo-European *-iskos.
-ց • (-cʿ)
- plural genitive case marker
- plural dative case marker
- plural ablative case marker
- Fortson, Benjamin W. (2010) Indo-European Language and Culture: An Introduction, second edition, Oxford: Blackwell, page 389
- Godel, Robert (1975) An introduction to the study of classical Armenian, Wiesbaden: Dr. Ludwig Reichert Verlag, page 106
- Matasović, Ranko (2009) A Grammatical Sketch of Classical Armenian (pdf), Zagreb, page 19