Torka is ’drought’. We have had a couple of weeks of that now, luckily, compared to last summer's awfully cold and wet climate. So now the hay is in.
The Swedish noun torka is formed with a -k suffix and the English noun drought with a -th suffix. The corresponding adjectives are torr and dry from the Germanic root *dreug- back to the Indoeuropean root *ters- ‘to dry’, ‘to thirst’. O course Swedish törst and English thirst have the same origin.
Another related word is Latin terra, literally ‘dry land’.