Where does “undeadly” come from?

undeadly (English) comes from English deadly, from English -ness, from Middle English -nesse, from Old English -nes, from Proto-West Germanic -nassī, from Proto-Germanic -inassuz, from Proto-West Germanic -ī, from Proto-Germanic -į̄ — Creates collective nouns, which refer to groups...

undeadly (English): Not subject to death; immortal; Unable to be...

Definitions

  1. Not subject to death; immortal; Unable to be...

Ancestry of “undeadly”, step by step

undeadly traces back through 3 separate lines of ancestry.

via English deadly

StepLanguageWordMeaning
1EnglishdeadlySubject to death; mortal; Causing death; lethal;...
2English-nessAppended to adjectives to form nouns meaning "the...
3Middle English-nesseAffixed to adjectives to form abstract nouns...
4Old English-nesUsed to form abstract nouns, usually from...
5Proto-West Germanic-nassīUsed to form abstract nouns, usually from...
6Proto-Germanic-inassuz-ness
7Proto-West Germanic-ness, -th
8Proto-Germanic-į̄-th
9Proto-Indo-European-íh₂
10Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via Middle English undedly

StepLanguageWordMeaning
1Middle Englishundedlyimmortal living forever
2Old Englishundēadlīcimmortal, for all eternity

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European -h₂