-ero | OEDoS

-ero Noun-forming suffix indicating an occupation, agency or state of being. From Latin -arius 'id.' From Proto-Italic *-ārio- 'id.' From Proto-Indo-European *-eh₂-r-i̯o- Indo-European Romance Asturian -ariu, Portuguese -áriu, Galician -eiro, Catalan -er, French -ier, Italian -aio, Aromanian -ar, Romanian -ar de Vaan, M. Etymological Dictionary of Latin and Other Italic Languages. BRILL. 2014. Real Academia Española. Diccionario de la lengua española. Online. 23rd ed. Madrid: Espasa Calpa. 2014. http://www.rae.es/. Sihler, A. New Comparative Grammar of Greek and Latin. Oxford University Press. 2008.