| 1 | Late Latin | eremus | deserted; waste, desert; wasteland, wilderness,... |
| 2 | Latin | erēmus | — |
| 3 | Ancient Greek | ἔρημος | lonely, solitary, desert, waste; solitary |
| 4 | Ancient Greek | ἐρῆμος | lonely, lonesome, solitary; bereft of, void or... |
| 5 | Proto-Indo-European | h₁reh₁- | to row; to separate; loose, sparse, rare |