low quarter
/ˌləʊ ˈk(w)ɔːtə/US
adjective
Usually hyphenated. Of a shoe or (less commonly) a boot: that has a low quarter or rear section over the heel; that does not reach above the ankle.
noun
A shoe that does not reach above the ankle; especially a dress or formal shoe. Usually in plural Compare quarter.
Origin
Mid 19th century; earliest use found in Summer-land. From low + quarter.