Where does “undeflectible” come from?

undeflectible (English) comes from English deflectible, from English deflect, from Latin deflecto, from Latin dē-, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti — afterwards, post; by, at.

Ancestry of “undeflectible”, step by step

undeflectible traces back through two separate lines of ancestry.

via English deflectible

StepLanguageWordMeaning
1Englishdeflectible
2EnglishdeflectTo make deviate from its original path; To touch...
3LatindeflectoI bend or turn downwards or away; I deflect; I...
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 pósEvery word from Latin dē-Every word from Proto-Indo-European pósti