If you mean in Irish Gaelic, no. 'Daideo' is grand-dad.
No his Dad or grandad is
No, the word Grandad (UK spelling) / Granddad (US spelling) is not an adverb.The word Grandad is a noun.
dhad-yó (means 'grandad')
Grandad, has two d's in it.
Yes, "grandad" is a compound word made up of "grand" and "dad."
It sounds like Cockney version of Poppy, derived from farver, father. I cannot find any reference to the word "Farvey" in any of my online Brit-Slang or English Idiom dictionaries! I'd think from the sound of it that the word is a corruption of the word "father" - like some kids call their grandfather Pa-Pa or Paw-Paw.
'Grandad' is just like you have spelled it -
Pader = paternoster (Lord's Prayer) in Welsh. Grandad is Taid in north Wales andTad-cu in south Wales.
παππούς (papus)
Taid (N) Tad Cu (S)
παππούς (papus)
A Di is a Scottish word for Grandad/grandpa.