Where does “pandemigau” come from?

pandemigau (Welsh) comes from Welsh pandemig, from English pandemic, from Latin pandēmus, from Ancient Greek πᾶν, from Ancient Greek ὀπτικός, from Ancient Greek ὄψις, from Ancient Greek ὄψ, from Proto-Hellenic wókʷs — to speak, to sound out.

Ancestry of “pandemigau”, step by step

StepLanguageWordMeaning
1Welshpandemigpandemic
2EnglishpandemicOf a disease: epidemic over a wide geographical...
3Latinpandēmusaffecting all the people, public, general
4Ancient Greekπᾶνneuter nominative singular of πᾶς; neuter...
5Ancient Greekὀπτικόςof or relating to seeing, sight or vision: optic,...
6Ancient Greekὄψιςview
7Ancient Greekὄψvoice; word; eye, face
8Proto-Hellenicwókʷsvoice
9Proto-Indo-Europeanwekʷ-to speak, to sound out
Every word from Proto-Indo-European wekʷ-Every word from Proto-Hellenic wókʷsEvery word from Ancient Greek ὄψ