See also: tollan and Tollan

Irish

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Etymology

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toll (hole, hollow) +‎ -án

Noun

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tollán m (genitive singular tolláin, nominative plural tolláin)

  1. tunnel

Declension

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Mutation

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Irish mutation
Radical Lenition Eclipsis
tollán thollán dtollán
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.