| [a], [b], [c] ← 12 | 13 | 14 → [a], [b], [c], [d] |
|---|---|---|
| Cardinal (feminine / vigesimal): tair ar ddeg Cardinal (masculine / decimal): un deg tri Cardinal (feminine / decimal): un deg tair Cardinal (masculine / vigesimal): tri ar ddeg Ordinal (masculine): trydydd ar ddeg Ordinal (feminine): trydedd ar ddeg Ordinal (vigesimal): (non-standard) triarddegfed Ordinal abbreviation: 13eg | ||
| Welsh Wikipedia article on 13 | ||
From tair (“three”) + ar (“on”) + deg (“ten”).
| Welsh mutation | |||
|---|---|---|---|
| radical | soft | nasal | aspirate |
| tair ar ddeg | dair ar ddeg | nhair ar ddeg | thair ar ddeg |
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | |||