moisture · enrich

1. Origins, structure, and basic meaning

• Structure: 潤 has 15 strokes and concerns gaining moisture or becoming more prosperous.
• Basic usage: 潤う is read うるおう, and 潤す is read うるおす.

2. Common pitfalls and similar expressions

• Becoming moist and moistening something
  • 乾いた畑が潤う means that dry fields become moist.
  • 乾いた喉を潤す means moistening a dry throat, with を marking what receives moisture.
• Prosperity for shops
  • 観光客が増えると、町の商店も潤うだろう predicts that village shops will likely prosper if tourist numbers increase.