Selenium (Greek σελήνη selene meaning "Moon") was discovered in 1817 by Jöns Jacob Berzelius, who noted the similarity of the new element to the previously-known tellurium (named for the Earth).
Sélénium - saking Basa Yunani Kuna σελήνη (selḗnē) "Wulan" - katemuin warsa 1817 olih Jöns Jacob Berzelius, sané nyutetin kapatehan datu anyar sareng téllurium sané katemuin sadurungné (kaaranin mawit Gumi).