Early Quenya
nosta
noun. birth, birthday
nosta-
verb. to give birth to; to cause
malto ísier i nosta - qarda
*by those from whom this birth was known - less
puita-
verb. to beget
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
nosta
noun. birth, birthday
nosta-
verb. to give birth to; to cause
malto ísier i nosta - qarda
*by those from whom this birth was known - less
puita-
verb. to beget
A noun appearing as ᴱQ. nosta “birth, birthday” in the Qenya Lexicon of the 1910s derived from the early root ᴱ√NŌ “become, be born” (QL/66).
Neo-Quenya: As the root √NŌ survived in Tolkien’s later writings with very similar meanings, I’d retain ᴺQ. nosta for purposes of Neo-Quenya, but I’d limit its use to “birth”. For “birthday” I’d use ᴺQ. nostarë, a neologism that has been in use for so long that I cannot identify where it came from.