Where does “semitoroidal” come from?

semitoroidal (English) comes from English toroidal, 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.

semitoroidal (English): Relating to a semitoroid

Definitions

  1. Relating to a semitoroid

Ancestry of “semitoroidal”, step by step

semitoroidal traces back through two separate lines of ancestry.

via English toroidal

StepLanguageWordMeaning
1EnglishtoroidalHaving the shape of a torus or toroid
2EnglishALInitialism of assembly language; Initialism of...
3Dutchalall, all of; already; yet
4Middle Dutchalall, all of; completely; even though, no matter...
5Old Dutchāl
6Proto-West Germanicallall
7Proto-Germanicallazall
8Proto-Indo-Europeanh₂él-to grow, nourish

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Proto-Indo-European h₂él-Every word from Proto-Germanic allazEvery word from Proto-West Germanic all