Narvinyë noun first month of the year, "January". The word seems to mean "New Fire/Sun". (Appendix D)
Quenya
avestalis
january
Narvinyë
january
Erintion
erintion
Erintion noun, second half of the month of avestalis (January) (LT1:252)
avestalis noun "January" (LT1:252; LotR-style Quenya has Narvinyë)