Naw (sounds like English 'now')
In South Wales, mam-gu; in North Wales. nain.
Nain (pronounced 'nine') is the north Welsh name for 'grandmother'.
In Welsh, "nine" is said as "naw".
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'.
The Welsh word for mum is mam.The Welsh word for dad is dad.
The Welsh word for 'decibel' is desibel.
The Welsh word for Excellent is ardderchog, it is also the welsh for fantastic.
The Welsh word for planet is 'planed' (plural - planedau)
In North Wales "Nain" pronounced like 'nine';in South Wales "Mam-gu" (pronounced 'mam-gee', g as in 'go')
The Welsh word for thunder is "taranu."
The Welsh word for 'landowner' is 'tirfeddiannwr'.