Where does “unsimilarly” come from?

unsimilarly (English) comes from English unsimilar, from English similar, from French similaire, from Latin similaris, from Latin similis, from Proto-Italic semalis, from Proto-Indo-European sem- — together, one.

Ancestry of “unsimilarly”, step by step

unsimilarly traces back through two separate lines of ancestry.

via English unsimilar

StepLanguageWordMeaning
1Englishunsimilardissimilar
2EnglishsimilarHaving traits or characteristics in common;...
3Frenchsimilairesimilar
4Latinsimilarisuniform; similar; second-person singular present...
5Latinsimilissimilar
6Proto-Italicsemalissimiliar
7Proto-Indo-Europeansem-together, one

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European sem-Every word from Proto-Italic semalisEvery word from Latin similis