R' Minden asked:
> Why oskha and not osakh (m.)? Is oskha even a word
> (of the same language that uses 'hamaqom' for God)?

Yes, it is indeed such a word. It appears in several places, such as 
Parshas T'rumah (25:9) -- "k'chol asher Ani mar'eh os'cha..."

(Found by the search engine at http://www.mechon-mamre.org  I was 
unable to find anything useful in Mandelkern's concordance.)

Akiva Miller