"We've got more meat than we shall know what to do with, Edward. Take the horse, go down to Charlie Bell's ship-yard, borrow a tackle, and ask Edmund Griffin to come and help us dress him; but firstmost let's get him into the barn, out of the hot sun."
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Apart from that I don't know the firstmost thing about getting divorced." I've found out all about it, Ma," she said.
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The firstmost thing I remember about him was something he told me, and I'll get to that in a minute.
Source: wiktionary
"Firstmost," he said, "I wish to extend my thanks for the goodwill and friendship, though both be undeserved, such as you would show by your having come
Source: wiktionary