These are wordlists put together by members of the Realelvish team for your convenience.
Quenya
For the Elves in and from the Holy Land, Aman (including Valinor).
Sindarin
For the Elves of Middle-earth.
Adûnaic
For the Númenóreans.
Calendars of Arda
All of the calendars and the time-related terms you need for talking about dates.