\-er\
.

1. [AS. -ere; akin to L. -arius.] The termination of many
   English words, denoting the agent; -- applied either to
   men or things; as in hater, farmer, heater, grater. At the
   end of names of places, -er signifies a man of the place;
   as, Londoner, i. e., London man.

2. [AS. -ra; akin to G. -er, Icel. -are, -re, Goth. -iza,
   -?za, L. -ior, Gr. ?, Skr. -[=i]yas.] A suffix used to
   form the comparative degree of adjectives and adverbs; as,
   warmer, sooner, lat(e)er, earl(y)ier.