Where does “heterolateral” come from?

heterolateral (English) comes from English hetero, from English heterosexual, from English -sexual, from English sexual, from Latin sexuālis, from Latin sexus, from Proto-Italic seksus, from Proto-Indo-European séksus — to cut, cut off, sever.

heterolateral (English): Synonym of contralateral

Definitions

  1. Synonym of contralateral

Ancestry of “heterolateral”, step by step

heterolateral traces back through two separate lines of ancestry.

via English hetero

StepLanguageWordMeaning
1EnglishheteroHeterosexual: of, pertaining to, or being a...
2EnglishheterosexualSexually attracted to members of the opposite...
3English-sexualForms a noun or adjective describing a state or...
4EnglishsexualArising from the fact of being male or female;...
5Latinsexuālissexual
6Latinsexusdivision; sex; gender
7Proto-Italicseksus
8Proto-Indo-Europeanséksus
9Proto-Indo-Europeansek-to cut, cut off, sever

via English lateral

StepLanguageWordMeaning
1EnglishlateralTo the side; of or pertaining to the side;...
2LatinlaterālisOf or belonging to the side; lateral
3Latinlātuswide, broad
4LatincaudaA tail
5Proto-Italickaudātail
6Proto-Indo-Europeankeh₂udeh₂
Every word from Proto-Indo-European sek-Every word from Proto-Indo-European séksusEvery word from Proto-Italic seksus