Etymology

rotational

R1O1T1A1T1I1O1N1A1L1

Today it means: Of, pertaining to or caused by rotation. Full definition →

Proto-Indo-European *h₂élisder.? ← English rotation ← Latin rotātiō
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The story

  1. Proto-Indo-European*Hreth₂-
  2. Proto-Indo-European*Hróth₂eh₂
  3. Proto-Italic*rotā
  4. Latinrota
  5. Latinrotō
  6. Latinrotātiō
  7. Englishrotation
  8. Proto-Indo-European*h₂el-
  9. Proto-Indo-European*h₂élisder.?
  10. English todayrotational

From rotation + -al.

Etymology from Wiktionary, CC BY-SA 4.0.