Etymology

catenin

ca·te·nin
C3A1T1E1N1I1N1

Today it means: Any of a class of proteins that have a role in cell adhesion. Full definition →

Latin catēn|a, ~ae ← Proto-Italic *katesnā
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The story

  1. Proto-Italic*katesnā
  2. Latincatēn|a, ~ae
  3. English todaycatenin

From Latin catēn|a, ~ae (“chain (series of interconnected rings or links)”) + English -in.

Etymology from Wiktionary, CC BY-SA 4.0.