Welsh Proverbs - Diarhebion Cymraeg
Deuparth gwaith yw ei ddechrau.
Deuparth gwaith yw ei ddechrau. - Starting the work is two thirds of it.
https://americymru.net/americymru/documentation/nouns/3219/deuparth-two-thirds
https://americymru.net/americymru/documentation/nouns/3219/deuparth-two-thirds