愁い

1. Origins, structure, and basic meaning

• Structure: 愁い (うれい) is a literary noun for anxiety or gentle sorrow.
• Basic usage: Deep concern appears in a woman's profile; faint sorrow pervades a song about autumn evening.

2. Common pitfalls and similar expressions

• Deep worry visible in a face and faint sorrow in a song
  • Both use 愁いが, but 浮かぶ concerns expression and 漂う an artistic atmosphere. It is more literary than everyday 心配.