| 1 | English | malacia | Abnormal softening of organs or tissues of the... |
| 2 | Latin | malacia | softening, weakness |
| 3 | Ancient Greek | μαλακία | softness, sickness; self-indulgence, weakness |
| 4 | Ancient Greek | μαλακός | soft, tender; gentle; soft, mild, gentle |
| 5 | Proto-Indo-European | melh₂- | to grind, to crush |
| 6 | Proto-Indo-European | mel- | soft; tender; weak; to deceive; to rub |
| 7 | Proto-Indo-European | mey- | to strengthen; to bind; to change, exchange |