井戸水

1. Origins, structure, and basic meaning

• Structure: The spelling is 井戸水, read いどみず, and it combines 井戸, meaning well, with 水, meaning water.
• Basic usage: The basic sense of 井戸水 is water drawn from a well or supplied from a well as its source.

2. Common pitfalls and similar expressions

• A water source distinct from tap water
  • Both examples use the form 井戸水. The defining point is that the water comes from a well, not its temperature or particular use.
• Watering a garden and studying old transport methods
  • 庭の草花に冷たい井戸水をやりました。 — I watered the garden plants with cold well water.
  • 昔の暮らしでは井戸水をどう運んだか調べました。 — We studied how people carried well water in the past.