lech·we 
(lĕchwē′, -wā′)
(lĕchwē′, -wā′)n. pl. lechwe or lech·wes
Either of two large antelopes (Kobus leche of southern Africa or K. megaceros of the Nile Valley) having a rough coat and long ridged horns in the male, and frequenting aquatic habitats.
[From Tswana, letswee or a kindred Bantu source .]