Etymology

orientational

O1R1I1E1N1T1A1T1I1O1N1A1L1

Today it means: Of or pertaining to orientation. Full definition →

Proto-Indo-European *h₂élisder.? ← English orientation ← French orientation
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The story

  1. Proto-Indo-European*h₃er-
  2. Proto-Italic*oriōr
  3. Latinorior
  4. Latinorientem
  5. Frenchorient
  6. Frenchorienter
  7. Frenchorientation
  8. Englishorientation
  9. Proto-Indo-European*h₂el-
  10. Proto-Indo-European*h₂élisder.?
  11. English todayorientational

From orientation + -al.

Etymology from Wiktionary, CC BY-SA 4.0.