eider/ʹiedə/ noun (pl eiders collectively eider)

• copolymer
• copolymerize
• cop out
• cop-out
• copper
• copperas
• copper beech
• copper-bottomed
• copperhead
• copperplate
• copper pyrites
• coppersmith
• copper sulphate
• coppice
• copr-
• copra
• copro-
• coproduce
• coprolalia
• coprolite
• coprophagia
• coprophagous
• coprophagy
• coprophilia
• copse