Etymology

catheter

ca·the·ter
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Today it means: A small tube inserted into a body cavity to administer a drug, create an opening, distend a passageway, or remove fluid. Full definition →

French cathéter ← Late Latin cathetēr ← Ancient Greek καθετήρ
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The story

  1. Ancient Greek · derived fromκαθετήρ“surgical instrument for emptying the bladder”
  2. Late Latin · derived fromcathetēr
  3. French · borrowed fromcathéter
  4. English todaycatheter

Borrowed from French cathéter, from Late Latin cathetēr, from Ancient Greek καθετήρ (kathetḗr, “surgical instrument for emptying the bladder”), from καθίημι (kathíēmi, “to descend, let down”) + -τήρ (-tḗr, suffix forming masculine nouns from verbs).

Etymology from Wiktionary, CC BY-SA 4.0.