You missed a bunch...Alfred Binet + Théodore Simon aka founders of the Binet-Simon Intelligence Test, which William Stern latter coined "Intelligenzquotient" (IQ).

Meanwhile in reality...intelligence/intelligio - "to understand" implies ones consent to stand under those who suggest a test of mind (test-a-ment). As for quotient/quoties - "how often"...as often as consent is given to suggestion.

Edit: Invent/inventio aka coming towards (inception towards death) being within (life), hence the sleight of hand...necessity (motion) is the mother (momentum) of invention (matter).

You missed a bunch...Alfred Binet + Théodore Simon aka founders of the Binet-Simon Intelligence Test, which William Stern latter coined "Intelligenzquotient" (IQ).

Meanwhile in reality...intelligence/intelligio - "to understand" implies ones consent to stand under those who suggest a test of mind (test-a-ment). As for quotient/quoties - "how often"...as often as consent is given to suggestion.