1. Relating to Cornwall. Cornish engine, a pumping-engine.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• vernish,
• soonish,
• fernish,
• cornic,
• cornia,
• coolish,
• soanish,
• ponish,
• clanish,
• crish,
• noonish,
• borfish,
• curnish,
• cownish,
• cornith,
• corntash,
• cornetifsh,
• coernish,
• corrnish,
• cornishh

• garnish,
• cornstarch,
• conch,
• cornhusk,
• clownish,
• furnish,
• varnish,
• cornsmut,
• corn smut,
• corn snow,
• cornus,
• corn chip,
• cornice,
• corneous,
• Corns,
• tarnish,
• cornishman.

The adjective form of the word "Cornish" is "Cornish".

The plural form of the word "cornish" is "Cornishes".

The singular form of the word "Cornish" is "Cornish". The word is both the singular and plural form, used to describe something or someone from Cornwall, a county in England.