Where does “antisimilar” come from?

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

antisimilar (English): mirror image (attributive)

Definitions

  1. mirror image (attributive)

Ancestry of “antisimilar”, step by step

antisimilar traces back through two separate lines of ancestry.

via English similar

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

via English anti

StepLanguageWordMeaning
1EnglishantiOpposed to something; That has a torsion angle...
2Englishanti-Against, hostile to; Contrasting with the norm;...
3Ancient Greekἀντι-anti-, against; like, reminiscent of
4Ancient Greekᾰ̓ντῐ́opposite
Every word from Proto-Indo-European sem-Every word from Proto-Italic semalisEvery word from Latin similis