Etymology

coistril

C3O1I1S1T1R1I1L1

Today it means: An inferior groom or lad employed by an esquire to carry the knight's arms and other necessaries; a coistrel. Full definition →

Old French coustillier
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The story

  1. Old French · derived fromcoustillier“groom or lad”
  2. English todaycoistril

Probably from Old French coustillier (“groom or lad”). Compare custrel.

Words from the same roots

Old Frenchcoustillier all →

custrel

Etymology from Wiktionary, CC BY-SA 4.0.