Where does “peninvariant” come from?

peninvariant (English) comes from English invariant, from English variant, from Old French variant, from Latin variāns, from Latin variō, from Latin varius, from Latin vārus, from Proto-Indo-European h₂wer- — to burn; to cover, heed, notice; squirrel.

Ancestry of “peninvariant”, step by step

peninvariant traces back through two separate lines of ancestry.

via English invariant

StepLanguageWordMeaning
1Englishinvariantnot varying; constant; Unaffected by a specified...
2EnglishvariantShowing variety, diverse; Showing deviation or...
3Old Frenchvariantvarying; which varies
4Latinvariānsdiversifying; variegating
5Latinvariōto diversify, variegate, change, transform, make different or various, alter, vary, interchange
6Latinvariusdiverse, different, various, variegated
7Latinvārus
8Proto-Indo-Europeanh₂wer-to lift up; to moisten; to flow; to raise, hang
9Proto-Indo-Europeanwēr-true
10Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

via English pene

StepLanguageWordMeaning
1EnglishpeneAlternative spelling of peen
2EnglishpeenThe end of the head of a hammer opposite the...
3EnglishpenisThe male reproductive organ used for sexual...
4Latinpēnistail
5Proto-Indo-Europeanpē̆s-to blow
Every word from Proto-Indo-European wer-Every word from Proto-Indo-European wēr-Every word from Proto-Indo-European h₂wer-