spelch
To splinter while being crosscut.
intransitive
Spelching can be avoided by cutting in from the outside face where possible.
Where it comes from
From Middle English spelc, or spilc (“little rod by which things are kept straight or a splint for binding up broken bones”), ultimately from Old Norse spelkur (“splints”).
Adapted from the Wiktionary entry spelch (CC BY-SA 4.0).