Compounds of 原

• 原
  (pref) original
  primitive
  primary
  fundamental
  raw
• 原
  (n) comrade
  fellow
• 原
  (n) field
  plain
  prairie
  tundra
  moor
  wilderness
  (P)
• 原
  (n-suf) suffixed to words indicating a class of people to create a plural (esp. in impolite contexts)
• 河原
  (n) dry river bed
  river beach
• 河原
  (n) dry river bed
  river beach
  (P)
• 海原
  (n) ocean
  sea
  the deep
• 起原
  (n,adj-no) origin
  beginning
  rise
• 桑原
  (n) mulberry field
  (P)
• 権原
  (n) origin of rights
• 原案
  (n) original plan
  original bill
  motion
  draft
  draught
  (P)
• 原意
  (n) original meaning
• 原因
  (n,vs) cause
  origin
  source
  (P)
• 原液
  (n) undiluted solution (of)
• 原音
  (n) fundamental tone
• 原価
  (n) cost price
  (P)
• 原画
  (n) original picture
  (P)
• 原器
  (n) standard (for weights and measures)
• 原義
  (n) original meaning
  (P)
• 原級
  (n) (1) one's former grade
  (n) (2) (ling) positive grade
• 原牛
  (n) aurochs
  urus (extinct ancestor of the modern cow, Bos taurus)
• 原拠
  (n) grounds
  basis
• 原曲
  (n) original song or melody
• 原句
  (n) original passage (in document)
• 原型
  (n,adj-no) prototype
  model
  pattern
  archetypal
  (P)
• 原形
  (n) original form
  base form
  (P)
• 原語
  (n) original word
  original language
• 原口
  (n) blastopore
• 原稿
  (n) manuscript
  copy
  (P)
• 原鉱
  (n) (raw) ore