Camel hitch, which is a modified version of the prusik... or maybe the prusik is a modified version of the camel hitch.... also the klemheist knot and blakes hitch... they are all related in how they attach and how they function....Practical Sailor had a recent series of articles on snubbers and chain hooks. Worth the read. They prefer hitches such as the camel hitch.
some knots and hitches, including many other things like ropes, lines, cables, shackles, clevis', ect, may be called by another name depending on the industry/sport/purpose in which they are used.... with some being only slightly modified versions of the original.