I bring you a mix of Old Latin, Grek and Norse in the form of Warhammer 40K theme song Angles of Death. HTe song is about well, angels of death, not specificaly about the WH40K ones i think (i dont really speak ancient Latin, Greek or NOrse XD so correct me if im wrong)

Link to youtube - https://www.youtube.com/watch?v=x8qp992Dssk

Lyrics -
Idivas, evo nos sudoni

Arhan asuvi varro

Ave - ni mach fordena (Misheard for: “For then we march for Terra”)

Avis, esu si surro

In avis, in novas, farsoni

Invere, vesu ves ni vox

Ire vas sumeni doni

Est vox menidis, varro
source of lyrics - http://www.last.fm/music/Doyle+W.+Do...arine+Theme%29