"earthen vessels collectively," 1719 (in crockery-ware); see crock + -ery. Especially ones made of glazed pottery or stoneware and for domestic use. Crocker, an old name for a potter, survives as a surname (late 13c.).
croaker
Croat
Croatia
crochet
crock
crockery
crocket
crocodile
crocus
Croesus
croft