noun / verb
sliver
SLIV-er/ˈslɪvər/
A thin, narrow piece, or to cut or split something into such pieces.
The narrow sliver matches a fresh break along the wooden block's edge.

Etymology
Sliven meant “to split or cleave”: a sliver was a splinter or roughly broken-off piece of wood. That image fits the selected meaning—a small, thin fragment separated from something larger.
In context
might notice that's eight layers of leather because the ninth layer is sandwiched in between the shank and the insole and that's really where the magic happens because that little sliver of leather builds up the arch
More examples
- I sliver the almonds before adding them to the salad.
- A sliver of sunlight slips through the curtains.
- He sweeps the sharp slivers of glass into a dustpan.
Forms
sliver · slivers · slivered · slivering