Where does “undecodable” come from?

undecodable (English) comes from English decodable, from English decode, from English de-, from Latin dē-, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti — afterwards, post; by, at.

undecodable (English): That cannot be decoded

Definitions

  1. That cannot be decoded

Ancestry of “undecodable”, step by step

undecodable traces back through two separate lines of ancestry.

via English decodable

StepLanguageWordMeaning
1EnglishdecodableAble to be read using a certain set of reading...
2EnglishdecodeTo convert from an encrypted form to plain text;...
3Englishde-reversal, undoing, removing; Intensifying; from,...
4Latindē-of; from
5Latinof; concerning; about
6Latinpostbehind; after, since, besides, except; behind,...
7Latinposteablative singular of postis
8Proto-Italicpostibehind, after
9Proto-Indo-Europeanpóstiafter
10Proto-Indo-Europeanpósafterwards, post; by, at

via English un

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