There's no list somewhere that says "modern English" words lol (if there is, please link it)... so it's just going to be whatever you deem not a word and everyone just has to accept that? And considering how you type a lot of your posts (not much sense due to English probably not being your first language(?), etc), it'll be hard for you to know which is and isn't modern or not. Different countries use different wording, and it all depends on the area you're from. I remember you saying you were in New Zealand - they probably use a few words we don't use in Australia. What if you say something that I don't understand or haven't heard, am I supposed to call you out and say "MODERN ENGLISH WORDS ONLY!@@#$ FOLLOW THE RULES!!@#$@". I'm sure England and America, who also speak English use different wording to things that neither of our countries use.
Anyway, back to the game:
Success is not final, failure is not fatal. It is the courage to continue that counts.