Vadim Konovalov wrote:
Icelandic: laukur (Incidentally, none of you will ever guess how to correctly pronounce that.)Russian: luk (pronounced similar to English "look"). For some reason, Icelandic translation of onion is much closer to Russian than any other variants...
The English leek is another cognate (as a word, of the laukr; as a plant, of the onion)...