from The Century Dictionary.
Sorry, no etymologies found.
It was a mean trick of Yorke's to "chowse" them out of the credit, they protested.
An 'gien ye dinna chowse to lat on aboot it till an auld freen' cause she's naething but a fisherwife, it's dune ye mair skaith a'ready nor I thocht it wad to the lang last, Ma'colm -- for it 's yer ain name I s 'ca' ye yet, gien ye war ten times a laird!
"Fact is," says Parson, insinuating himself under the cords, greatly to the indignation of some other small boys near, "it's a chowse letting
"Ye see, mem, it's a pairt o 'the edication o' the human individual, frae the time o 'Adam and Eve doonwith, to learn to refuse the evil and chowse the guid.