Words and Proper Names

-as (senchas)

629.
McCone (Kim): OIr. senchae, senchaid and preliminaries on agent noun formation in Celtic.
In Ériu 46 (1995), pp. 1–10.
ad F. Kelly, in Peritia 5 (1986), 74-106. Senchae derives from a compound *seno-kwois(y?)os, meaning ‘old witness’. Senchas represents senchae + abstract suffix -as.
Kelly (Fergus) (ref.)