Crocker is composed of the word crock plus the suffix of -er. The first written record of the word crocker dates back to 1315 AD. It might have been the common Anglo-Saxon term for potter before 1066 AD. It has also been used as a surname.
crocker (plural crockers)
- a potter.
See also 
- Krueger, Dennis (December 1982). "Why On Earth Do They Call It Throwing?" Studio Potter Vol. 11, Number 1. (etymology)