Where does “mindset” come from?

I can't write this etymology because the chain provided contains only English at every stage with no earlier language sources, making it impossible to trace the word to its origin. A valid etymology requires at least one pre-English language ancestor.

mindset (English): A way of thinking; an attitude or opinion,...

Definitions

  1. A way of thinking; an attitude or opinion,...

Ancestry of “mindset”, step by step

mindset traces back through two separate lines of ancestry.

via English mind

StepLanguageWordMeaning
1EnglishmindThe ability for rational thought; The ability to...
2Middle Englishminde
3Old Englishmyndmind
4Proto-Germanicgamundizremembrance, memory; commemoration, memorial
5Proto-Germanicga-Indicates association or togetherness; co-;...
6Proto-Indo-Europeanḱómbeside, near, by, with
7Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
8Middle Englishkyt
9Germankittputty certain kinds of cement used for fixing e.g. window panes
10Old High Germankuti
11Proto-West Germanickwidugum, resin
12Proto-Germanickweduzresin
13Proto-Indo-Europeangʷet-resin, gum; to say, speak
14Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...

via English seṭ

StepLanguageWordMeaning
1Englishseṭof a root, having a final "i" sound in certain...
2EnglishseptA clan, tribe, or family, proceeding from a...
3EnglishsectAn offshoot of a larger religion; a group sharing...
4Middle EnglishsecteA variety or sort; a category with a...
5Old Frenchsectea sect in philosophy or religion
6Late Latinsectaa sect in philosophy or religion, a school,...
7Latinsequipresent active infinitive of sequor; follow, come...
8LatinsequorI follow, come or go after
9Proto-Italicsekʷōrfollow, come/go after
10Proto-Indo-Europeansékʷetorto be following
11Proto-Indo-Europeansekʷ-to follow; to see; to say

Words derived from “mindset

Every word from Proto-Indo-European gū-