I heard a homophone of moray, but I don't know how to spell it or what it means. I heard it in the plural: "morays." Any ideas?

I have only ever heard of "moray" as a kind of eel. Could the word you heard have been a mispronunciation? Maybe the speaker meant "morass".

In jprinting, there is a "moire" pattern which occurs when two separate overlays have the same angles (they're usually separated by thirty degrees). We pronounced it "moray" since I think there should be an accent mark over the "e".

Propbably mores 'accepted traditional customs and usages of a particular social group; moral attitudes; manners, ways' < Latin mōrēs 'customs, morals'. There is no singular form in English, but in Latin it was mōs.

I've only ever pronounced moiré /mwareɪ/, but /mɔreɪ/ is another pronunciation, at least in General American English; not sure about RP.

How about the mondegreen from the old Dean Martin song, "That's Amore?"

One of my bosses used to pronounce it mwahr but, after being laughed at universally, he came around to maw-ray.

Thanks to all, but zmjezd got it right.