IPA: /ˈbuːtleɪs/
KK: /ˈbutˌleɪs/
A thin cord or lace used to fasten shoes or boots.
He tied his bootlaces tightly before going for a run.
Bootlace → The word is formed from "boot" (from Old English *bōt*, meaning a type of footwear) and "lace" (from Old French *lacier*, meaning to fasten or tie). A bootlace is a lace used to fasten or tie a boot.
Think of a 'boot' as a type of footwear and 'lace' as something that ties it together — that's why a bootlace is used to fasten a boot.
No commonly confused words.