*ghes-

Proto-Indo-European root meaning "the hand." 

It forms all or part of: chiral; chiro-; chirognomy; chirography; chirology; chiromancy; chiropodist; chiropractic; chiropractor; chirosophy; chirurgeon; enchiridion; surgeon; surgery; surgical.

It is the hypothetical source of/evidence for its existence is provided by: Greek kheir, Hittite keshshar, Armenian jern "the hand"