Cassock
Cassock , noun
[French casaque, from Italian casacca, perh. from Latin casa cottage, in Italian, house; or of Slavic origin.]
1.
A long outer garment formerly worn by men and women, as well as by soldiers as part of their uniform.
2.
(Ecclesiastical) A garment resembling a long frock coat worn by the clergy of certain churches when officiating, and by others as the usually outer garment.