sha·doof also sha·duf 
(shä-df)
(shä-df)n.
A device consisting of a long suspended pole weighted at one end and having a bucket at the other end, used in the Near East and especially Egypt for raising water, as for the irrigation of land.
[Egyptian colloquial Arabic šādūf, perhaps (via an unattested Coptic form) from Egyptian *šdw.f, something equipped with a waterskin or bucket of leather (since traditional shadoofs have buckets of leather) : šdw, waterskin + -f, , denominal suffix.]