Akademik

breeches
n.pl. (also pair of breeches sing.)
1 short trousers, esp. fastened below the knee, now used esp. for riding or in court costume.
2 colloq. any trousers, knickerbockers, or underpants.
Phrases and idioms:
Breeches Bible the Geneva Bible of 1560 with breeches for aprons in Gen. 3:7. breeches buoy a lifebuoy suspended from a rope which has canvas breeches for the user's legs.
Etymology: pl. of BREECH

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breeches [ˈbrɪtʃɪz] [ˈbrɪtʃɪz] noun plural
short trousers/pants fastened just below the knee

a pair of breeches

riding breeches

 
Word Origin:
[breeches] Middle English: plural of breech.

Useful english dictionary. 2012.