Where does “fótathréimhseacht” come from?

fótathréimhseacht (Irish) comes from Irish fóta-, from Ancient Greek φῶς, from Proto-Hellenic pʰáos, from Proto-Indo-European bʰéh₂os, from Proto-Indo-European bʰeh₂-, from Proto-Indo-European bʰeh₂-s-ri-.

fótathréimhseacht (Irish): photoperiodism

Definitions

  1. photoperiodism

Ancestry of “fótathréimhseacht”, step by step

StepLanguageWordMeaning
1Irishfóta-photo-
2Ancient GreekφῶςAttic form of φᾰ́ος
3Proto-Hellenicpʰáos—
4Proto-Indo-Europeanbʰéh₂os—
5Proto-Indo-Europeanbʰeh₂-to shine, glow light; to speak, say
6Proto-Indo-Europeanbʰeh₂-s-ri-—
Every word from Proto-Indo-European bʰeh₂-s-ri- →Every word from Proto-Indo-European bʰeh₂- →Every word from Proto-Indo-European bʰéh₂os →