| 1 | English | lobe | Any projection or division, especially one of a... |
| 2 | Middle French | lobe | — |
| 3 | New Latin | lobus | a lobe; hull, husk, pod; lobe |
| 4 | Ancient Greek | λοβός | lobe of the ear; lobe of the liver; lobe of the... |
| 5 | Proto-Indo-European | leh₂b- | to hang loosely; to lap, lick |