gymslip

plural gymslips

1. A sleeveless or short-sleeved tunic with a pleated skirt, most commonly seen as part of a girl's school uniform.

   I've seen this child in her gymslip and school blouse […]

   1968, Alan Sharp, The wind shifts, page 203

   2 more examples

   She'd swapped the print dress for a plain white blouse and brown gymslip.

   2010, Jonathan Raban, Foreign Land: A Novel

   Boarders wore navy pleated skirts with white blouses; day girls had brown gymslips, cream blouses and beige jumpers. Lisle stockings could be a nuisance, as were hats and gloves.

   2013, Jane Howells, Leehurst Swan School: A Centenary History, page 16

   Synonyms: tunic