potsuri-potsuri
Rain falling in isolated, intermittent drops with pauses between each one. Slower and more deliberate than potsu-potsu.
💡The very first drops before a storm — 'Rain began falling potsuri-potsuri on the windowpane.'
窓にぽつりぽつりと雨粒が落ちてきた。
Raindrops started falling potsuri-potsuri on the window.
Raindrops began hitting the window ___, one at a time.
雨粒が窓に○○と落ちてきた。