Dictionary.net

The floating dust in flour mills caused by the operation or grinding.

To stuff; to cram; to crowd; hence, to make hot, sultry, and close; "His chamber being commonly stived with friends or suitors of one kind or other."-Sir H. Wotton: to stew, as meat:-pr.p. stiving; pa.t. and pa.p. stived.

To be stifled: to stew, as in a close atmosphere. "I shall go out in a boat. One can get rid of a few hours in that way instead of stiving in a wretched hotel."-George Eliot.

The floating dust in flour-mills during the operation of grinding. Simmonds.