'nation

The two young men were acquainted, though not intimate with each other, and they bowed, and then shook hands; and Barry told the attorney that he was welcome to Dunmore House, and the attorney made another bow, rubbed his hands before the fire and said it was a very cold evening; and Barry said it was 'nation cold for that time of the year; which, considering that they were now in the middle of February, showed that Barry was rather abroad, and didn't exactly know what to say.

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"I hope there ain't, but I can't make so 'Nation sure of that," said the guard, in gruff soliloquy. "Hallo you!"

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"Stop a bit," said the mate, and, springing before the clergyman, he set his back against the door. "Don't be in such a nation hurry: for, if you do, it will be bad for me, but worse for you."

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'What's the meaning o' that? 'Nation seize such husbands as you seem to get, say I!'

Source: wiktionary