It's "mar dhea" in Irish, pronounced moryah, and means "forsooth",
It's used a bit like "Oh, sure!", "Oh, right!" or "would you believe it?" to express distainful incredulity, e.g.
"They believed they were smartest guys in the room. The masters of the universe, mar dhea!"
Mór means big or great.
big, large, great
big
Quote from the website linked below: Oran Mor is Gaelic for The Great Music which simply means pibroch or Highland bagpipe music, and at a higher level, the music of mankind and universal nature.
Fear mór - big man
Nothing, mor is not a Japanese word.
Check Sabhal Mor Ostaig Stor data on-line (Dictionary)
cluas is an ear, cluas mor is a large ear
The word 'bassett' is not a Gaelic word, and therefore has no meaning in Gaelic.
It is not a Gaelic word. Gaelic has no K.
'You' is not a Gaelic word.
It is not a Gaelic word.
Kendre isn't a Gaelic word.
'Spades' is not a Gaelic word.