Shall iron
barzel (bar-zel')
iron (as cutting); by extension, an iron implement -- (ax) head, iron.
break
ra`a` (raw-ah')
to spoil (literally, by breaking to pieces); figuratively, to make (or be) good for nothing, i.e. bad (physically, socially or morally)
the northern
tsaphown (tsaw-fone')
hidden, i.e. dark; used only of the north as a quarter (gloomy and unknown) -- north(-ern, side, -ward, wind).
iron
barzel (bar-zel')
iron (as cutting); by extension, an iron implement -- (ax) head, iron.
and the steel
nchosheth (nekh-o'-sheth)
copper, hence, something made of that metal, i.e. coin, a fetter; figuratively, base (as compared with gold or silver)