聳える
そびえる · sobieru · JLPT N1 · verb-ichidan
to rise
🗼 聳 = 耳 (ear) + 从: originally raising the ears to listen, then rising high like a tower
The 耳 ear part hints at the old sense of lifting the ears up to listen. That upward reach carried over to things that rise high above their surroundings.