I'm not sure if this is a stumper, or if I'm the last one to know this. There is a(t least one) English word that contains no vowels - including y. It's a real word, it's not obscure, like cwm a slur, like hmm an onomatopoeia, like psst, an acronym like TV, a short form like Dr. punctuated, like Ms. No Googling!
I googled Please Register or Log in to view the hidden image! But I also think I found 20 nouns otherwise Please Register or Log in to view the hidden image! https://www.dictionary.com/browse/x?s=t
Very insightful question. Please Register or Log in to view the hidden image! But you'd require a broad definition of 'mathematical'. Is the word 'first' a mathematical term? It's used in quite common language.
nth As in, "When I came home with lipstick on my collar, she grilled me to the nth degree." Please Register or Log in to view the hidden image!
We could have a whole family of similar words ...pth ,qth rth etc etc . They could also be used as esoteric first names for children in rockstar/ mathematical families such as Brian May and Brian Cox.
In theory, sure. But it was important to the teaser that it be a not-obscure word. Shoot! I should have added 'no proper names'.
Or for families with a lot of children. My mother had four brothers and seven sisters. The next one could have been called Nth.
Broom Hilda Cartoon from 80's: Meet Primo, the first of our carefully planned family of two. Meet Finale, the last of our carefully planned family of two. Oh, and who is this adorable little one? Oh. That's Oops.