Great thanks to Galadhorn and everyone at elvish.org
for helping translating the phrases in Sindarin and Rohirric (Old English).
Transcript and sync: Mikerophone
Hiro hyn hîdh ab ’wanath. (Let they find peace in the afterlife.) [Lit.: [Let] find they [masc.] peace after death]
Aragorn, nad no ennas! (Aragorn, something’s out there!) [lit.: [A] thing to be there!]
Man cenich? (What do you see?)
Bealocwealm hafað fréone frecan forth onsended (An evil death has set forth the noble warrior)
giedd sculon singan gléomenn sorgiende (A song shall sing sorrowing minstrels)
on Meduselde þæt he ma no wære, (in Meduseld that he is no more,)
his dryhtne dyrest and mæga deorost. (to his lord dearest and kinsmen most belover.)
Bealo... (An evil death...)
Simbelmynë. [Lit.: Evermind]
Westu hál... Ferðu, Théodred, Ferðu. (Be-thou well... Go-thou, Théodred, go-thou.)
Fæste. (Fast.)
Stille nú. ([Be] still now.)
Fæste. (Fast.)
Stille. ([Be] still.)
Lac is drefed, gefrægon. (A battle is stirred up, [they] heard.)
Hwæt nemnað ðe? (What is your name?)
Ðin nama is cynglic. (Your name is kingly.)
Man le trasta, Brego? (What troubles you, Brego?)
Man cenich? (What did you see?)
Minlû pedich nin... (Once you told me...)
i aur hen telitha. (this day would come.) [lit.: [that] the day this will-come.]
Ú i vethed nâ i onnad. (This is not the end... it is the beginning.) [lit.: Not the end... [it] is the beginning.]
Boe bedich go Frodo. (You must go with Frodo.) [lit.: It is necessary [that] you go with Frodo.]
Han bâd lîn. (It [is] your path.)
Dolen i vâd o nin. (My path is hidden from me.) [lit.: Hidden the path from me.]
Si peliannen i vâd na dail lîn. (It is already laid before your feet.) [lit.: Now spread the way for your feet.]
Si boe ú-dhannathach. (You cannot falter now.) [lit.: Now it-is-necessary [that] you-don’t-fall.]
Arwen...
Ae ú-esteliach nad... (If you trust nothing else...) [lit.: If you don’t-trust some-thing [?]...]
estelio han... (trust [in] this...)
estelio ammen. (trust [in] us.)
Nach gwannatha sin? (Are you going to leave in such way?)
Ma nathach hi gwannathach or minuial archened? (Did you think you could slip away at first light - unnoticed?) [Lit.: Are you going to leave after morrow - unseen?]
Ú-ethelithon. (I will not return.)
Estelio guru lîn ne dagor. (Trust in your skill in battle.)
Ethelithach. (You will return.)
Ú-bedin o gurth ne dagor. (I don’t speak about death in battle.)
O man pedich? (What do you speak of?) [Lit.: About what you speak?]
Edra le men, men na guil edwen... (You have a chance for another life...) [Lit.: [It] opens [to] you [a] path, path to [a] life second [here: another]...]
haer o auth a nîr a naeth. (far from war and weeping and woe.)
Arwen.
Tollen i lû. (It is time.) [Lit.: Come [is] the time.]
I chair gwannar na Valannor. Si bado, no círar. (The ships depart to Valinor. Now go, before they sail.)
Ah im, ú-’erin veleth lîn? Do I not also have your love? [Lit.: And I, don’t-I-have love your?]
Gerich veleth nîn, ada. You have my love, father. [Lit.: You-have love my, dad.]
I amar prestar aen, (The world is changed,)
han mathon ne nen, (I feel it in the water.)
han mathon ne chae, (I feel it in the earth,)
a han noston ned ’wilith. (I smell it in the air.)
Mae carnen, Brego, mellon nîn. (Well done, Brego, my friend.)
Le abdollen. (You’re late.)
Hannon le. (Thank you.)
Boe a hyn: (And they should be...) [Lit.: It is necessary to them:]
Neled herain... dan caer menig. (Three hundred... against ten thousand.)
Si, beriathar hyn ammaeg na ned Edoras. (Here they-will-defend them[-selves] sharper than at Edoras.)
Aragorn, nedin dagor hen ú-’erir ortheri. (Aragorn, they cannot win this fight.) [Lit.: Aragorn, in the battle this [they] not can to-win.]
Natha daged dhaer (They are all going to die.) [Lit.: [It] will be slaying great.]
Ú-moe edaved, Legolas (There is nothing to forgive, Legolas.)
Mae govannen, Haldir. (Well-met, Haldir.)
A Eruchîn, ú-dano i faelas a hyn... (O Children-of-Eru, don’t show the mercy to them...)
an uben tanatha le faelas! (for nobody will-show you mercy!)
Dartho! (Hold!)
Tangado a chadad! (Prepare to fire!)
Faeg i-varv dîn na lanc... (Their armour is weak at the neck...) [Lit.: Poor armour their below the neck...]
a nu ranc! (and beneath the arm!) [Lit.: and under arm!]
Hado i philinn! (Release the arrows!)
Pendraith! (Ladders!) [Lit.: Stairways!]
Causeway! Na fennas! (To gateway!)
Hado ribed! Hado! (Hurl to flow! Hurl!)
Togo hon dad, Legolas! (Bring him down, Legolas!)
Dago hon! (Kill him!)
Hado i philinn! (Release the arrows!)
Herio! (Charge!)
Nan barad! (To [the] Tower!)
Haldir!
Nan barad! (To [the] Tower!)
Haldir!
Forð Eorlingas! (Forth Eorlingas!)