coom - What does it mean?

Verb

“Not a bit,” replied the Yorkshireman, extending his mouth from ear to ear. “There I lay, snoog in schoolmeasther’s bed long efther it was dark, and nobody coom' nigh the pleace. ‘Weel!’ thinks I, ‘he’s got a pretty good start, and if he bean’t whoam by noo, he never will be; so you may '''coom''' as quick as you loike, and foind us reddy’—that is, you know, schoolmeasther might ' coom .”