Where does “bradyopsia” come from?

bradyopsia (English) comes from English -opsia, from Ancient Greek -οψία, from Ancient Greek ὄψις, from Ancient Greek ὄψ, from Proto-Hellenic wókʷs, from Proto-Indo-European wekʷ- — to speak, to sound out.

bradyopsia (English): A failure of the eyes to respond quickly to changing light levels, or to perceive a moving object against a bright background

Definitions

  1. A failure of the eyes to respond quickly to changing light levels, or to perceive a moving object against a bright background

Ancestry of “bradyopsia”, step by step

StepLanguageWordMeaning
1English-opsiaForming compound nouns denoting specific...
2Ancient Greek-οψίαsight
3Ancient Greekὄψιςview
4Ancient Greekὄψvoice; word; eye, face
5Proto-Hellenicwókʷsvoice
6Proto-Indo-Europeanwekʷ-to speak, to sound out
Every word from Proto-Indo-European wekʷ- →Every word from Proto-Hellenic wókʷs →Every word from Ancient Greek ὄψ →