Examples from the Web for lengthways
If roasted, it is better to cut it lengthways as a saddle; or if for steaks, pies, or broth.
To settle the point he began to pace the plot of ground, across and then lengthways.Max Carrados|Ernest Bramah
After the hewing was done, we sawed it lengthways into two pieces.Then and Now|Robert Vaughn
Taig: I'll cut him crossways and lengthways the same as a yard of frieze!Three Wonder Plays|Lady I. A. Gregory
Then wring out one of the cold towels thoroughly, so as to have it damp and not dripping; fold it lengthways eight ply.Papers on Health|John Kirk