Welsh speakers - very basic word translations please

My 3 year old son is learning Welsh at his nursery, he knows his colours with the exception of the two below and keeps pestering me for translations of words, Ive tried using the online translators but when entering white for example, it brings up a lot of words rather than just one so I'd rather teach him the correct way. (In my defence, they stopped teaching Welsh in Year 9 due to a lack of Welsh teachers so it wasnt an option for me to take, though I am looking at part time courses now). Can someone please let me know the following

White

Flower

Black

Money

gwyn

blodyn

du

arian

cariad:

gwyn

blodyn

du

arian

Thank you very much, you dont know how much pestering you have saved me from

i have tom gf here who is 10 and in the welsh stream if you need more help

i call them gf and bf but they are just friends at that age