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caiseal

rook

NounMasculineC1/ˈkaʃəl̪ˠ/

"caiseal" means "rook" in Irish (masculine noun). Pronounced /ˈkaʃəl̪ˠ/. Mutation forms: Séimhiú → chaiseal, Urú → gcaiseal.

Mutation forms

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

MutationForm
Base formcaiseal
Séimhiúchaiseal
Urúgcaiseal

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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