Where does “Ogam” come from?

Ogam (Translingual) comes from English Ogham, from Irish ogham, from Old Irish ogum, from Yoruba Ògún.

Ancestry of “Ogam”, step by step

StepLanguageWordMeaning
1EnglishOghamA single character in this alphabet
2IrishoghamOgham script
3Old Irishogum—
4YorubaÒgún—
Every word from Yoruba Ògún →Every word from Old Irish ogum →Every word from Irish ogham →