Hwyl
The Welsh word for mum is mam.The Welsh word for dad is dad.
The Welsh word for Excellent is ardderchog, it is also the welsh for fantastic.
The Welsh word for 'a cave' is ogof.
The Welsh word for Epiphany is Ystwyll.
'You' is not a Welsh word.
bay Bay rhymes with say not by..by....which if you mean goodbye, then the word is spelt bye bye... As far as I am aware there is no word which ryhmes.
Hwyl nawr.
The Welsh word for Toxic is: Gwenwynig
The word 'fern' is not a Welsh word and has no meaning. The Welsh word for 'a fern' is 'rhedynen'.
In Wales, you can say "hwyl fawr" to say goodbye in Welsh.
The Welsh word for mum is mam.The Welsh word for dad is dad.
The Welsh word for Excellent is ardderchog, it is also the welsh for fantastic.
The Welsh word for 'decibel' is desibel.
The Welsh word for planet is 'planed' (plural - planedau)
The Welsh word for thunder is "taranu."
The Welsh word for 'rectangle' is petryal.
The Welsh word for 'a cave' is ogof.