Where does “dorsumal” come from?

dorsumal (English) comes from English AL, from Dutch al, from Middle Dutch al, from Old Dutch āl, from Proto-West Germanic all, from Proto-Germanic allaz, from Proto-Indo-European h₂él- — to grow, nourish.

Ancestry of “dorsumal”, step by step

dorsumal traces back through two separate lines of ancestry.

via English AL

StepLanguageWordMeaning
1EnglishALInitialism of assembly language; Initialism of...
2Dutchalall, all of; already; yet
3Middle Dutchalall, all of; completely; even though, no matter...
4Old Dutchāl—
5Proto-West Germanicallall
6Proto-Germanicallazall
7Proto-Indo-Europeanh₂él-to grow, nourish

via English dorsum

StepLanguageWordMeaning
1EnglishdorsumThe back of the tongue, used for articulating...
2Latindorsumback, part of the body between the neck and...
3Proto-Italicdorsom—
Every word from Proto-Indo-European h₂él- →Every word from Proto-Germanic allaz →Every word from Proto-West Germanic all →