Where does “octode” come from?

octode (English) comes from English octo, from English octopus, from Latin octopūs, from Ancient Greek ὀκτώπους, from Ancient Greek πούς, from Proto-Indo-European pṓds, from Proto-Indo-European póds, from Proto-Indo-European ped- — to walk, to step; to stumble, to fall.

octode (English): A thermionic valve that has eight electrodes or similar elements

Definitions

  1. A thermionic valve that has eight electrodes or similar elements

Ancestry of “octode”, step by step

octode traces back through two separate lines of ancestry.

via English octo

StepLanguageWordMeaning
1EnglishoctoAn octopus
2EnglishoctopusAny of several marine molluscs of the family...
3Latinoctopūsoctopus
4Ancient Greekὀκτώπουςeight-footed; octopus
5Ancient Greekπούςfoot; leg; Greek foot or pous, the ancient Greek...
6Proto-Indo-Europeanpṓdsfoot
7Proto-Indo-Europeanpódsfoot
8Proto-Indo-Europeanped-to walk, to step; to stumble, to fall

via English ode

StepLanguageWordMeaning
1EnglishodeA short poetical composition proper to be set to...
2Middle Frenchode
3Latinodaode
4Ancient Greekᾠδήsong, ode; legend, tale, story
5Ancient GreekἀείδωTo sing, chant, praise; To make various noises:...
6Proto-Hellenicawéidōto sing
Every word from Proto-Indo-European ped-Every word from Proto-Indo-European pódsEvery word from Proto-Indo-European pṓds