No, the Americans simply distorted the true meaning of the ntr and combined it with their historical masochistic fetish; the BBC/cuck
By the way, English is not exclusive to a single country.Special mention is only made of those in the US because they are the ones who have that fetish and that it was spread everywhere
I think you should battle it on academic ground.
English is my second language, like in most of the non-English world. To know the meaning of NTR I go to look up in an English dictionary as it has the largest word base. In my mother language, there is a translation to cuckold, but not for NTR.
English is the most common foreign language to learn in most countries.
Then Google Translate, translate Netorare directly to cuckold, it is a credible English source.
The Japanese understand the ntr well, 80% of their content is *infidelity, corruption, cheating* the other remaining percentage is cuck content. While the content of the American ntr is 80% cuck/BBC
I would disagree on this, because in every NTR game, the cuck POV is a very important part of the story. In netorase and netorare it is even an MC POV. If I say that in 99% of NTR games there is a cuck, so it would be quite accurate to label it as cuckold games for any English-speaking person to understand you.
*infidelity, corruption, cheating* tells me very little and doesn't connect with the most important "cuckold" character.