Where does “unassiduous” come from?

unassiduous (English) comes from English assiduous, from Latin assiduus, from Latin assideō, from Latin ad-, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en — in.

unassiduous (English): not assiduous

Definitions

  1. not assiduous

Ancestry of “unassiduous”, step by step

unassiduous traces back through two separate lines of ancestry.

via English assiduous

StepLanguageWordMeaning
1EnglishassiduousHard-working, diligent or regular (in attendance or work); industrious
2Latinassiduusconstant, regular, perpetual; unremitting,...
3Latinassideōto sit by or near someone or something
4Latinad-to; usually prefixed to verbs, in which cases it...
5Latinīn-un-, non-, not
6Latinînin, at, on, upon, from (space)
7Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
8Proto-Italicenin
9Proto-Indo-Europeanh₁énin

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European h₁énEvery word from Latin īn-Every word from Latin ad-