From Proto-Germanic *allǭ *nahtų. Cognates include Old Norse alla nátt, Gothic 𐌰𐌻𐌻𐌰 𐌽𐌰𐌷𐍄 (alla naht).
IPA(key): /ˈæ͜ɑl.le nixt/, [ˈæ͜ɑɫ.ɫe niçt]
ealle niht