"Twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety"
Translation:Dudek, tridek, kvardek, kvindek, sesdek, sepdek, okdek, naŭdek
I keep wanting to say kvin is four because saying "kvin, kvar" feels more natural than "kvar, kvin".
If you like music, think about a given number of musicians: duo, trio, quartet, quintet, sextet, septet, octet
The numbers comes to us throu Sanscrit, then Latin, widespreaded in our languages. The usual number words changed, but numbers in adjectives, music, science etc. did not change as much, so we can recognize them easier than number words.
Latin is not a daughter language of Sanskrit. They are cousins that both descended from Proto-Indo-European.