Useful Elvish Phrases

Ai na vadui Dúnadan! [N] O, [it] is [at] last Dunedain!
Mae govannen! [N] [1] Well met!
Namárie [Q] Goodbye
Meneg suilaid [N] [2] lit. Thousand Greetings
Elen síla lúmenn' omentielvo. [Q] A star shines on the hour of our meeting.
Namárie, tenn' enomentielva. [Q] Goodbye, until we meet again.
Cioi nin mellon! [N] lit. Live for me friend! (farewell)
Suilad [N] lit. Greetings
Tancave! [Q] lit. Certainly! (used for yes)
Lau! [Q] No!
Alayambo! [Q] Hooray!
Eglerio! [N] Praise!
A laita! [Q] Praise!
Hennaid evyr! [N] lit. Overflowing thanksgiving! (used for thank you)
Cuio i Aina Amarth anann! [N] lit. Live the Aina Amarth long!
Aglar'ni Amarthatar! [N] Glorify Amarthatar!
Nai maare sermoil oi koryuvatye. [Q] May thou ever be surrounded by good friends.
Nai siiluva elen tietyanna. [Q] May a star shine on thy path.
Nai siiluva elen inna karyuvatye. [Q] Mayest a star shine on what[ever] thou wilt do.
Nai nuldar kuile alaturyuvatye. [Q] Mayest thou overpower the secrets of (being alive/immortality).
Naur dan i Eldar! [N] Fire take the Elves!
Naur dan i Naugrim! [N] Fire take the Dwarves!
Yestiessi Amarthatar karne ilyar nati. [Q] At the beginning Amarthatar made all things.
Footnotes:
[1]     Spoken only, not used in letters
[2]     Common ending of letters
[Q]     Quenya
[N]     Noldorin (Sindarin)