Problem using "for"

[SkiIucK]

Hi!
I don`t seem to understand this usage of "for", though I suggest what it might mean. In the given example, the unclear combination of words is underlined:
"He saw where, for want of greater activity in offering goods consigned - quicker communication with shippers and buyers, a better working agreement with surrounding commission men - this house, or, rather, its customers, for it had nothing, endured severe losses."

P.S. Sorry for the long sentence. T_T

Thanks in advance!
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If you find any typographical or grammatical errors in my post, please let me know.

[Alan]

Hi,

Your sentence: