途絶える
とだえる · todaeru · JLPT N1 · verb-ichidan
to stop
🚧 途 = road + 絶 = cut off: a road that is cut off means traffic stops
Use 途絶える for a road, supply line, or communication that stops. The kanji 途 (road, way) and 絶 (sever) together mean the way is severed, so the flow ends.