cof·fle 
(kôfəl, kŏfəl)
(kôfəl, kŏfəl)n.
A group of animals, prisoners, or slaves chained together in a line.
tr.v. cof·fled, cof·fling, cof·fles
To fasten together in a coffle.
[Arabic qāfila, caravan, feminine active participle of qafala, to close, return; see qpl in the Appendix of Semitic roots.]