Nothing, mor is not a Japanese word.
Fool
big
bad, evil
Yes, "mor mor" is a term used in some cultures, particularly in Scandinavian languages, to mean "grandmother." It is an affectionate way to refer to one's grandmother. The term may vary in spelling and pronunciation across different languages and regions, but the sentiment remains similar.
sound of the sea
Japanese photographer Yasumasa Morimura (mor-ih-moo-rah)
It's not clear whether you mean the name "Morgan" or the Yiddish word "MOR-gen". Assuming the latter, the Yiddish "MOR-gen" means "tomorrow", straight from the German.
If you mean "mon amour", it means "my love". Pronunciation is "mo nam-mor"
Fear mór - big man
"Bryn y Mor" means "Hill of the Sea" in Welsh. It combines the words "bryn" (hill) and "y mor" (the sea) to create a name or description of a place near the sea situated on a hill.
German experiments were exposed and publicized. Japanese experiments were top secret and not publicized. When the war ended, the Japanese were quick to destroy most of their records. Answer: No one will "really" ever know.
It's buachaill mór and in Irish it means 'big boy".