Dewiswch lefel (Choose level)
word roots — see how Welsh words grow
prefixes & suffixes — the building blocks of Welsh words
Welsh negation patterns
ℹ️ About the prefixesY Rhagddodiaid Negyddol
Three ways to negate in Welsh
an- vs di-
an- reverses meaning (opposite): hapus → anhapus (happy → unhappy)
di- indicates absence (lacking): gwaith → di-waith (work → without work)
an- changes form
• an- before vowels, h, d, l, n, r, s
• ang- before c, g (spirant mutation)
• am- before p, b (nasal mutation)
• ann- before n, t
ordinals, dates & times
Ordinal Numbers (Trefnolion)
+| # | Masc | Fem | Abbr |
|---|---|---|---|
| 1st | cyntaf | gyntaf* | 1af |
| 2nd | ail | ail | 2il |
| 3rd | trydydd | trydedd | 3ydd |
| 4th | pedwerydd | pedwaredd | 4ydd |
| 5th | pumed | 5ed | |
| 6th | chweched | 6ed | |
| 7th | seithfed | 7fed | |
| 8th | wythfed | 8fed | |
| 9th | nawfed | 9fed | |
| 10th | degfed | 10fed | |
| 11th | unfed ar ddeg | 11eg | |
| 12th | deuddegfed | 12fed | |
| 15th | pymthegfed | 15fed | |
| 20th | ugeinfed | 20fed | |
| 21st | unfed ar hugain | 21ain | |
| 30th | degfed ar hugain | 30ain | |
| 31st | unfed ar ddeg ar hugain | 31ain | |
*gyntaf after feminine nouns with soft mutation
Decade & Large Ordinals
+Ordinal Adverbs
+Ordinals with Nouns
+Word Order & Mutations
Split Ordinals (11, 13-14, 16-17, 19, 21-31)
Noun goes between the ordinal parts:
Date Formation
+Format 1: Day of Month
y + ordinal + o + mutated month
Format 2: Month the Day
month + y/yr + ordinal
Adding Years
Year Numbers
Month Mutations (after "o")
Telling Time
+Minutes in Welsh
Nodyn: deng yw ffurf deg o flaen m/n — deng is the form of deg (ten) used before words starting with m or n. deg munud is also acceptable in modern Welsh.