nav·vy
noun/ˈnævi/
/ˈnævi/
(plural navvies)
(British English)- (in the past) a person employed to do hard physical work, especially building roads, railways or canals
壮工；苦力；（尤指）筑路工 Word Originearly 19th cent.: abbreviation of navigator (which was formerly also used in this sense).