| 1 | Middle English | lofty | — |
| 2 | Middle English | lofte | air, sky, upper region, loft; of high rank;... |
| 3 | Old English | loft | — |
| 4 | Old Norse | lopt | attic; air, heaven |
| 5 | Proto-Germanic | luftuz | roof; roof of the earth, firmament; heavens, sky;... |
| 6 | Proto-Indo-European | lewp- | peel, break off; to flake off, peel, damage; to... |
| 7 | Proto-Indo-European | lew- | dirt, mud; to cut, remove, prune, separate; to... |