Where does “unmortal” come from?

unmortal (English) comes from English mortal, from Middle English mortal, from Old French mortal, from Latin mortālis, from Latin mors, from Proto-Italic mortis, from Proto-Indo-European mértis, from Proto-Indo-European mer- — to die; to disappear; sea, lake, wetland.

unmortal (English): Not mortal; not susceptible to death

Definitions

  1. Not mortal; not susceptible to death

Ancestry of “unmortal”, step by step

unmortal traces back through two separate lines of ancestry.

via English mortal

StepLanguageWordMeaning
1EnglishmortalSusceptible to death by aging, sickness, injury,...
2Middle Englishmortal
3Old Frenchmortal
4Latinmortālismortal (subject to death)
5Latinmorsdeath; corpse; annihilation
6Proto-Italicmortisdeath
7Proto-Indo-Europeanmértisdeath
8Proto-Indo-Europeanmer-to die; to disappear; sea, lake, wetland

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European mer-