76%RatingSave Gender Masculine Usage Irish (Rare) Pronounced Pron. SHAY [key] Meaning & History From Old Irish Ségdae, probably derived from ségda meaning "fine, good, favourable, learned". According to an Irish legend this was the name of a boy who was set to be sacrificed but was saved by his mother [1]. Related NamesFamily Tree·Details VariantsSé, Shay, SheaOther Languages & CulturesShae, Shaye(English) Ségdae(Irish Mythology) Ségdae(Old Irish) Seaghdh(Scottish Gaelic) Surname DescendantsÓ Séaghdha, O'Shea, Shea(Irish) Categories uncertain etymology Sources & References Page at https://archive.org/details/riufoundedasjou00irelgoog/page/n176/mode/2up.