Where does “trivariate” come from?

trivariate (English) comes from English variate, from Latin variatus, from Latin variō, from Latin varius, from Latin vārus, from Proto-Indo-European h₂wer-, from Proto-Indo-European wēr-, from Proto-Indo-European wer- — to burn; to cover, heed, notice; squirrel.

trivariate (English): Having or involving exactly three variables

Definitions

  1. Having or involving exactly three variables

Ancestry of “trivariate”, step by step

trivariate traces back through two separate lines of ancestry.

via English variate

StepLanguageWordMeaning
1EnglishvariateA measurable quantity capable of taking on a...
2Latinvariatusdiversified, variegated, transformed etc
3Latinvariōto diversify, variegate, change, transform, make different or various, alter, vary, interchange
4Latinvariusdiverse, different, various, variegated
5Latinvārus
6Proto-Indo-Europeanh₂wer-to lift up; to moisten; to flow; to raise, hang
7Proto-Indo-Europeanwēr-true
8Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

via English tri

StepLanguageWordMeaning
1Englishtritriathlon; triangle
2Proto-Indo-Europeantréyesthree
Every word from Proto-Indo-European wer-Every word from Proto-Indo-European wēr-Every word from Proto-Indo-European h₂wer-