Which language is the sister language of English?

hair Haar       friend Freund          hat Hut

     moon Mond     tea Tee       fire Feuer     light Licht

  lamp Lampe           shoe Schuh         bed Bett  

bread Brot     card Karte     milk Milch      glass Glas

        banana Banane      sun Sonne       elephant Elefant

                rain Regen           institute Institut

German and English have common roots