slipsole

noun
slip·​sole | \ ˈslip-ˌsōl How to pronounce slipsole (audio) \

Definition of slipsole

1 : a thin insole
2 : a half sole inserted between the insole or welt and the outsole of a shoe to give additional height

called also slip tap

First Known Use of slipsole

circa 1908, in the meaning defined at sense 1

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