Uned Pump - Adolygu

WY
The diphthong ‘wy’ represents two sounds, and it is a matter of learning when to use the right one.
•               wy  =  wi as in with,  - gwyn (white)
                 gwyrdd (green)
                 gwynt (wind)
                 chwyn (weeds)

•               wy  =  similar to the English sound ‘wee’, the second vowel being longer than the first,as in gwych (excellent)
                gwyllt  (wild)
                newydd (new)
                chwys (sweat)
                hwy (them, they)
                mwy (more)
                drwy (through)
                chwyth (blow, puff).

Just in case you wish to insert a Welsh greeting in your cards, here are a few:

We usually refer to a certain 24 hours as ‘diwrnod’:
Diwrnod braf  =  a fine day

‘dydd’ refers to the period when we have daylight:
Y dydd hiraf  =  the longest day