Etymology

proper

prop·er
P3R1O1P3E1R1

Today it means: Suited or acceptable to the purpose or circumstances; fit, suitable. Full definition →

First used 13th c.Middle English propre ← Anglo-Norman propre ← Latin propriu
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The story

  1. Proto-Indo-European*per-der.?
  2. Proto-Indo-European*pér
  3. Proto-Indo-European*pró
  4. Proto-Indo-European*pro-
  5. Proto-Italic*pro-
  6. Proto-Indo-European*preyH-
  7. Proto-Indo-European*priHós
  8. Proto-Italic*prijos
  9. Proto-Italic*proprijos
  10. Latinpropriu
  11. Anglo-Normanpropre
  12. Middle Englishpropre
  13. English todayproper

From Middle English propre, from Anglo-Norman proper, propre, Old French propre (French: propre), from Latin proprius.

Words from the same roots

Latinproprius all →

presbypropriaproper leftproper motionproper rightpropriospinal

First known use, by meaning

  • 13th c. Suited or acceptable to the purpose or circumstances; fit, suitable.
  • 18th c. Following the established standards of behavior or manners; correct or decorous.
  • 14th c. Used to designate a particular person, place, or thing. Proper nouns are usually written with an initial capital letter.
  • 14th c. Pertaining exclusively to a specific thing or person; particular.
  • 14th c. Belonging to oneself or itself; own.
  • 16th c. Portrayed in natural or usual coloration, as opposed to conventional tinctures.
  • 20th c. Being strictly part of some other thing (not necessarily explicitly mentioned, but of definitional importance), and not being the thing itself.
  • 20th c. Eigen-; designating a function or value which is an eigenfunction or eigenvalue.

Etymology from Wiktionary, CC BY-SA 4.0.