The word mem ayin yud is defined in some dictionaries as a heap of ruins,
but it is only used in Isaiah 17:1. Maybe in that quote it says about
Damascus that "it will be from a heap a ruin" or "from a ruinous heap" if
the word heap is ayin yud ?
I hate when dictionaries give definitions for words that are only used once
and no one knows what they really mean. I wish they would at least put a
question mark next to it.
My dictionary is called "the compendious Hebrew-English dictionary" by
Reuben Grossman and H. Sachs and edited and revised by M.H. Segal by Dvir
Publishing 1956. If I am wrong about this word, I should at least get to
blame them.