Bhave Your Ever Seen...? Poem by Barry A. Lanier

Barak Ilahy fik (Arabic)
Ashoge (Apache)
Dios pagaraktam (Bolivia)

Pojo (Mexican)
Obrigada (Portugese)
E'kosi (Cree)
Taudi (Assyria)
Rahmet (Uzbekistan)
Yewo (Malawi)

Ar kun (Cambodia)
Tazim (Pakistan)

Pilamaya Yelo (Lakhota Indian)
Otyo (Kiga African)
Erokamano (Kenya)
Terima kasih (Malaysia)
Hy'shge siam (Lummi)
Ulfaad'd'a (Somalia)
Nandi (Malayalam, India)
Thenqiu (Kikuyu, African)
Eso (Mabuiag, Australia)
Rahmet (Kazakhstan)

There is a theme and a ridddle to found in this...can you find it?