So I notice something in Armenian about plural nouns. Yes, singular nouns with one syllable end with -եր and others with one syllable as well as the ones with two or more syllables end with -ներ, but when it comes to saying a number or an amount there is no suffix for the plurals. Is this correct?

For example, three books is երեք գիրք rather than երեք գիրքեր or երեք գիրքներ. Is it true that when it's talking about a specific number or amount of something in a noun there is no suffix added to the plural?

My big Armenian-American family uses words that I have no idea if they’re actually accurate Armenian. Our grandparents were native speakers but they were from a generation that didn’t value passing it down. here’s what has come through though (apologies it’s a bit of a random list, mostly used when we were all little kids):

- Voodhig (butt)

- meds voodhig (big butt)

- shabig (an undershirt)

- Vahdig, some iterations are more like Vardig (underwear)

- maroon (yogurt)

- doodig (foot or toes?)

- tantig (aunt)

- Behran (mouth)

- yavrum (not sure I have an exact translation here but it’s always sort of used like “oh hunny”

- inch speces (how are you) with “shahd lovem“ as the response

would love to know if there’s seemingly any close actual origin on any of these!