Etymograph

English

McCosh

McCosh comes from Irish Mac Coise ‘son of Cos’, from cos ‘foot, leg’, and ultimately from Proto-Indo-European *koḱs- ‘limb’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*koḱs-‘limb’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*kóḱseh₂reconstructed
  3. Proto-Celticc. 1300–800 BCE*koxsā‘leg, foot’reconstructed
  4. Old Irishc. 600–900cos‘foot’
  5. Irishc. 1200–presentsame form‘foot, leg’
  6. Irish, derivedc. 1200–presentMac Coise‘son of Cos’
  7. EnglishtodayMcCosh

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*koḱs-‘limb’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*kóḱseh₂reconstructed
  3. Proto-Celticc. 1300–800 BCE*koxsā‘leg, foot’reconstructed
  4. Old Irishc. 600–900cos‘foot’
  5. Irishc. 1200–presentsame form‘foot, leg’
  6. Irish, derivedc. 1200–presentMac Coise‘son of Cos’
  7. EnglishtodayMcCosh

The story

Anglicized form of Scottish Gaelic and Northern Irish Mac Coise (‘son of Cos’), a byname deriving from cos (‘foot, leg’).

Linked words

through Proto-Indo-European *kóḱseh₂

cushion, 6 more

Today it means

name A surname.

Language periods are conventional ranges, not dates for this word.

Etymograph / Proto-Indo-European *koḱs- / McCosh

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