Where does “semipreparative” come from?

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

semipreparative (English): About half the size of equivalent preparative...

Definitions

  1. About half the size of equivalent preparative...

Ancestry of “semipreparative”, step by step

semipreparative 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 preparative

StepLanguageWordMeaning
1EnglishpreparativeThat serves to prepare something; preliminary or...
2Middle Englishpreperatif
Every word from Proto-Indo-European sēmiEvery word from English semi-Every word from English semi