欠ける

1. Origins, structure, and basic meaning

• Structure: 欠ける (かける) is an intransitive verb for being chipped or lacking a needed quality.
• Basic usage: A plate rim is physically chipped; a proposal lacks specificity and is revised.

2. Common pitfalls and similar expressions

• Missing piece of an object and missing abstract quality
  • Physical subject is 皿の縁が; deficient quality appears as 具体性に. Note the に frame for the abstract sense.