chan·tey also chan·ty 
(shăntē, chăn-) or shan·tey or shan·ty (shăntē)
(shăntē, chăn-) or shan·tey or shan·ty (shăntē)n. pl. chan·teys also chan·ties or shan·teys or shan·ties
A song sung by sailors to the rhythm of their movements while working.
[Probably from French chantez, imperative pl. of chanter, to sing, from Old French; see CHANT.]