Where does “semidiesel” come from?

semidiesel (English) comes from English semi, from English semi-, from Latin sēmi-, from Proto-Indo-European sēmi — half; partially.

semidiesel (English): An internal combustion engine of a type...

Definitions

  1. An internal combustion engine of a type...

Ancestry of “semidiesel”, step by step

semidiesel traces back through two separate lines of ancestry.

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially

via English diesel

StepLanguageWordMeaning
1EnglishdieselA fuel derived from petroleum but heavier than...
2GermanDieseldiesel vehicle powered by a diesel engine
Every word from Proto-Indo-European sēmi →Every word from English semi- →Every word from English semi →
semidiesel — Etymology, Origin & Word History | Etymology Explorer