Etymology

perrostral

P3E1R1R1O1S1T1R1A1L1

Today it means: Of a suture of a trilobite, running along the edge of a rostrum. Full definition →

English rostral ← Latin per- ← Proto-Italic *per
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The story

  1. Proto-Indo-European*per-der.?
  2. Proto-Indo-European*pér
  3. Proto-Italic*per
  4. Latinper
  5. Latinper-
  6. Englishper-
  7. Englishrostral
  8. English todayperrostral

From per- + rostral.

Etymology from Wiktionary, CC BY-SA 4.0.