消化

1. Origins, structure, and basic meaning

• Structure: 消化 (しょうか) can mean bodily digestion or figurative processing of tasks. Both examples are negative, but their domains differ.
• Basic usage: 消化されず describes food failing to digest; 仕事を消化できなかった describes being unable to process all the day's work.

2. Common pitfalls and similar expressions

• Biological digestion and figurative task processing
  • Food is the subject of passive されず; work is the object of an active potential construction. The latter should not receive the physiological reading.