the GNU version of the Collaborative International Dictionary of English
ad. From this or that.
The Century Dictionary and Cyclopedia
From that.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. from that circumstance or source
ad. from that place or from there
Word Usage
"The relative poverty which has resulted therefrom is largely to be attributed to errors and deficiencies which we will have to correct in the future."