ha·ka 
(häkä)
(häkä)n.
1. A Maori war dance accompanied by chanting.
2. A similar choreographed chant performed by a Rugby team, especially one from New Zealand.
[Maori; akin to Hawaiian ha'a, men's dance performed with bent knees, and Samoan sa'a, to be short-legged, dance, all from Proto-Polynesian *saka, from Proto-Malayo-Polynesian *sakaŋ, bowlegged (compare Tagalog sakaŋ, bowlegged), from Proto-Austronesian *-kaŋ, spread apart (as the legs or something split in two).]