Where does “duotype” come from?

duotype (English) comes from English type, from Middle English type, from Latin typus, from Ancient Greek τύπος, from Ancient Greek τύπτω, from Proto-Indo-European (s)tewp-, from Proto-Indo-European (s)tew- — to push, to hit.

duotype (English): A print made from two halftone photographic plates made from the same negative, but etched differently

Definitions

  1. A print made from two halftone photographic plates made from the same negative, but etched differently

Ancestry of “duotype”, step by step

duotype traces back through two separate lines of ancestry.

via English type

StepLanguageWordMeaning
1EnglishtypeA grouping based on shared characteristics; a...
2Middle Englishtypesymbol, figure, emblem
3Latintypusfigure, image; type, form, sort, kind; form,...
4Ancient GreekτύποςA blow, pressing; The results of a blow: mark,...
5Ancient Greekτύπτωto beat, strike, smite; to beat, strike oneself
6Proto-Indo-European(s)tewp-to push, to stick
7Proto-Indo-European(s)tew-to push, to hit

via English duo

StepLanguageWordMeaning
1EnglishduoTwo people who work or collaborate together as...
2Frenchduoduo; duet
3ItalianduoObsolete form of due; duo; duet
4Latinduōtwo; 2
5Proto-Italicduōtwo
6Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European (s)tew-