Where does “single-lens reflex” come from?

single-lens reflex (English) comes from English single, from Middle English single, from Old French sengle, from Late Latin cingula, from Latin Cingulum, from Latin -ulum, from Proto-Indo-European -tlom, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...

single-lens reflex (English): Denoting or relating to a type of camera which...

Definitions

  1. Denoting or relating to a type of camera which...

Ancestry of “single-lens reflex”, step by step

single-lens reflex traces back through two separate lines of ancestry.

via English single

StepLanguageWordMeaning
1EnglishsingleNot accompanied by anything else; one in number;...
2Middle Englishsingle
3Old Frenchsenglesingle; alone; alone; in an unaccompanied way
4Late Latincingulanominative/accusative/vocative plural of cingulum
5LatinCingulumsituated on a lofty hill, now Cingoli
6Latin-ulumUsed to form a noun of instrument or means from a...
7Proto-Indo-European-tlomAlternative form of *-trom
8Proto-Indo-European-tromForms nouns denoting a tool or instrument
9Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English lens

StepLanguageWordMeaning
1EnglishlensAn object, usually made of glass, that focuses or...
2Latinlēnslentil
Every word from Proto-Indo-European -tḗrEvery word from Latin -ulumEvery word from Latin Cingulum