Proto-Baltic: *al̃k-a- c., *al̃k-ā̂ f.
Meaning: sacred place
Lithuanian: al̃kas, alkà `Hain'; ME I:567 elkas, al̃kas '(heiliger) Hain'
Lettish: ę̀lks 'der Götze, der Abgott'; ęlka kalns, ęlka dievs `Tempelberg, Tempelgott'; { ON Elkazeme etc. }
Old Prussian: Alkayne, Alkanasoyte (ON)