per
1. [ pronoun ] preposition, rate, performance, cost, or other unit relative to one of
Synonyms: a an at each for at_the_rate_of
Similar spelling:   Peru
  Pero
  Peri
  Pere
  Pera
  peer
  pear
  Perry
  Perro
  Perri
  Perea
  Peery
  peary
  peoria