From Japanese 制服 (seifuku せいふく), from Middle Chinese 制服 (tʃjèj-bjuwk) (compare Mandarin zhìfú 制服), from Old Chinese (tets-bək "official or ceremonial clothing", "mourning attire"), from 制 ("cut" > "designed" > "systematized") + 服 ("clothing").
seifuku (plural seifuku)
- (Japan) A Japanese school uniform modelled on the sailor suit.
- Generally italicized as a foreign word.
- seifuku can be used for any kind of Japanese school uniforms, not only the sailor suit type; serafuku is more specific for the sailor suit type.
- nanchatte seifuku identifies the fake versions used in cosplay and kogal fashion.