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geis

a tabu

NounFeminineC1/ɟeʃ/

"geis" means "a tabu" in Irish (feminine noun). Pronounced /ɟeʃ/. Mutation forms: Séimhiú → gheis, Urú → ngeis.

Mutation forms

In Irish, the first letter of "geis" changes depending on the grammatical context. These are the mutated forms:

MutationForm
Base formgeis
Séimhiúgheis
Urúngeis

Further reading

Irish Mutations: Complete Guide to Séimhiú and Urú →Irish Pronunciation, The System Behind the Spelling →How to Learn Irish as an Adult, A Step-by-Step Roadmap →Best Irish Learning App 2026 →Browse all Irish vocabulary →

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