Scottish National Dictionary (1700–)
OUTSIFTIN, vbl.n. Also ootsiftin. Gen. in pl.: the refuse of meal that goes through the riddle after grinding (Sh. 1964).
Sh. 1899 J. Spence Folk-Lore 174:
When sifted, the meal fell into three divisions — meal, groats, and ootsiftins, from the last of which that delicious food called sooans, and that healthy tonic beverage known as swats, are made. Sh. 1900 Shetland News (22 Dec.):
He's gotten shappid tatties an' ootsiftins ivery day sinsyne.
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"Outsiftin vbl. n.". Dictionary of the Scots Language. 2004. Scottish Language Dictionaries Ltd. Accessed 18 Feb 2019 <http://www.dsl.ac.uk/entry/snd/outsiftin>
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