Bread = Corn. Bread is put by Figure of speech Metonymy (of Effect), for the corn of which it is made. Compare Job_28:5.
bruised = crushed: i.e. reduced to powder. Compare Exo_32:20. 2Ki_23:6. Render, as a question: Is corn crushed? because = nay. The Hebrew accent tebir is disjunctive and requires this rendering. Compare Revised Version margin, and Job_22:2.