means The tibia is the larger, weight-bearing of the two bones in your lower leg — the shinbone, running from knee to ankle.

from Straight from Latin, where tibia meant 'shinbone' — but also, charmingly, 'flute' or 'pipe.' The Romans carved their flutes from animal shin bones, so one word served both the leg and the instrument. Every time you bash your shin, you're striking an ancient woodwind.