feriar
to sell
fair
a gathering for selling goods
+
-ar
verb suffix
Feriar means to sell and can be thought of as fair0 (a gathering for selling goods0) + -ar1 (verb suffix1).
verb
  1. to sell
    To sell or trade goods at a fair or market
    Los artesanos ferian sus productos en el mercado local. // The artisans sell their products at the local market.