[…] based ‘Pegative’ on the Greek πηγή, which means ‘origin, source, emanation, etc.’ to provide a name for a case that proto-typically refers to a giver as opposed to a recipient".
However, the posited Tlapanec case system is verbal, and it is controversial whether verbal case as such actually exists.
- Wichmann (2005), p.16.
- Wichmann, Søren (2005). Rosemary Beam de Azcona and Mary Paster (eds.), ed. "Report 13, Survey of California and Other Indian Languages" (PDF). Conference on Otomanguean and Oaxacan Languages, March 19–21, 2004. Berkeley CA: University of California at Berkeley. pp. 133–145. Retrieved 2011-03-01.