Etymology

castmate

C3A1S1T1M3A1T1E1

Today it means: Someone with whom one performs together, as a member of a cast. Full definition →

English mate ← Middle English mate ← Middle Low German mate
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The story

  1. Proto-Germanic*kas-
  2. Proto-Germanic*kastōną
  3. Old Norsekasta
  4. Middle Englishcasten
  5. Englishcast
  6. Proto-Indo-European*ḱe?
  7. Proto-Indo-European*ḱóm
  8. Proto-Germanic*ga-
  9. Proto-Germanic*matiz
  10. Proto-Germanic*matjô
  11. Proto-West Germanic*gamatjô
  12. Old Saxongimato
  13. Middle Low Germanmate
  14. Middle Englishmate
  15. Englishmate
  16. English todaycastmate

From cast + -mate.

Etymology from Wiktionary, CC BY-SA 4.0.