Where does “φωτω-” come from?

φωτω- (Ancient Greek) comes from Latin elementum, from Ancient Greek στοιχεῖον, from Ancient Greek στοῖχος, from Proto-Hellenic stóikʰos, from Proto-Indo-European stóygʰ-os, from Proto-Indo-European steygʰ- — to go; to climb.

Ancestry of “φωτω-”, step by step

φωτω- traces back through two separate lines of ancestry.

via Latin elementum

StepLanguageWordMeaning
1Latinelementumone of four elements that composed the world;...
2Ancient Greekστοιχεῖονone of a row; one of a series, a component part,...
3Ancient Greekστοῖχοςrow in an ascending series; a line of poles...
4Proto-Hellenicstóikʰos
5Proto-Indo-Europeanstóygʰ-os
6Proto-Indo-Europeansteygʰ-to go; to climb

via Ancient Greek φῶς

StepLanguageWordMeaning
1Ancient GreekφῶςAttic form of φᾰ́ος
2Proto-Hellenicpʰáos
3Proto-Indo-Europeanbʰéh₂os
4Proto-Indo-Europeanbʰeh₂-to shine, glow light; to speak, say
5Proto-Indo-Europeanbʰeh₂-s-ri-

Words derived from “φωτω-

Every word from Proto-Indo-European steygʰ-Every word from Proto-Indo-European stóygʰ-osEvery word from Proto-Hellenic stóikʰos