Sentence:  On a much-discussed marble plaque from Aquileia she<!-- i.e., Tyche --> stands beside a figure whose body is a winged <WSD>ithyphallus</WSD>, but which has human legs. Disagreement as to whether this grotesque figure should be called Tychon or something else should not divert us from the fact that she could be represented in such company. Whatever name the ithyphallic figure had, if any, the plaque shows that Tyche has association with the most direct symbol not only of luck but of fertility for men and the fields, which may explain, at least in part, why she seemed proper to represent the eastern goddess of fertility. 
Meaning of the word marked with <WSD> tags:  A depiction of an erect penis.