Where does “retroreflectivity” come from?

retroreflectivity (English) comes from English retroreflective, from English reflective, from English reflect, from Old French reflecter, from Latin reflectō, from Latin rĕ-, from Latin prōdūcō, from Latin prō- — passed , crossed.

retroreflectivity (English): The quality of being retroreflective

Definitions

  1. The quality of being retroreflective

Ancestry of “retroreflectivity”, step by step

retroreflectivity traces back through two separate lines of ancestry.

via English retroreflective

StepLanguageWordMeaning
1EnglishretroreflectiveTending to reflect light back to its source with...
2EnglishreflectiveThat reflects, or redirects back to the source;...
3EnglishreflectTo bend back (light, etc.) from a surface
4Old Frenchreflecter
5Latinreflectōto turn back or away; yield; retreat
6Latinrĕ-back, backwards
7Latinprōdūcōto lead or bring forth, forward or out
8Latinprō-forward direction, forward movement
9Proto-Italic*pro-pro- see the Latin entry for further meanings
10Proto-Indo-Europeanpro-toward, forward
11Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
12Proto-Indo-Europeanper-before, in front; first; to go through
13Proto-Indo-Europeanpr̥tóspassed , crossed

via English ity

StepLanguageWordMeaning
1Englishity
2Ingrian-uUsed to form nouns from verbs
Every word from Proto-Indo-European pr̥tós
retroreflectivity — Etymology, Origin & Word History | Etymology Explorer