From An Bheilg (“Belgium”) + -ach (adjectival suffix).
Beilgeach (genitive singular masculine Beilgigh, genitive singular feminine Beilgí, plural Beilgeacha, not comparable)
| Singular | Plural (m/f) | |||
|---|---|---|---|---|
| Positive | Masculine | Feminine | (strong noun) | (weak noun) |
| Nominative | Beilgeach | Bheilgeach | Beilgeacha; Bheilgeacha² | |
| Vocative | Bheilgigh | Beilgeacha | ||
| Genitive | Beilgí | Beilgeacha | Beilgeach | |
| Dative | Beilgeach; Bheilgeach¹ |
Bheilgeach; Bheilgigh (archaic) |
Beilgeacha; Bheilgeacha² | |
| Comparative | níos Beilgí | |||
| Superlative | is Beilgí | |||
¹ When the preceding noun is lenited and governed by the definite article.
² When the preceding noun ends in a slender consonant.
Beilgeach m (genitive singular Beilgigh, nominative plural Beilgigh)
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Bare forms:
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Forms with the definite article:
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| Irish mutation | ||
|---|---|---|
| Radical | Lenition | Eclipsis |
| Beilgeach | Bheilgeach | mBeilgeach |
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | ||